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137125523745541 = 975213172985517
BaseRepresentation
bin11111001011011100000110…
…001000011110101100000101
3122222112001221112001020000201
4133023130012020132230011
5120433131033034324131
61203350332421010501
740611664211204542
oct3713340610365405
9588461845036021
10137125523745541
113a768676332451
1213467a18553a31
135b68b5c5a3a56
1425c0ca71b5bc9
1510cbe39b5d761
hex7cb70621eb05

137125523745541 has 16 divisors (see below), whose sum is σ = 138811096977840. Its totient is φ = 135445522268160.

The previous prime is 137125523745527. The next prime is 137125523745643. The reversal of 137125523745541 is 145547325521731.

It can be written as a sum of positive squares in 8 ways, for example, as 14153614612641 + 122971909132900 = 3762129^2 + 11089270^2 .

It is a cyclic number.

It is not a de Polignac number, because 137125523745541 - 215 = 137125523712773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137125523715541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1603445715 + ... + 1603531231.

It is an arithmetic number, because the mean of its divisors is an integer number (8675693561115).

Almost surely, 2137125523745541 is an apocalyptic number.

It is an amenable number.

137125523745541 is a deficient number, since it is larger than the sum of its proper divisors (1685573232299).

137125523745541 is an equidigital number, since it uses as much as digits as its factorization.

137125523745541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117864.

The product of its digits is 17640000, while the sum is 55.

The spelling of 137125523745541 in words is "one hundred thirty-seven trillion, one hundred twenty-five billion, five hundred twenty-three million, seven hundred forty-five thousand, five hundred forty-one".

Divisors: 1 97 521 31729 50537 85517 3077713 8295149 16530809 44554357 1603488473 2713368893 4321772629 263196782621 1413665193253 137125523745541