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131583678689 is a prime number
BaseRepresentation
bin111101010001011111…
…1111001100011100001
3110120122021220110101002
41322202333321203201
54123440410204224
6140240530521345
712335523546251
oct1724277714341
9416567813332
10131583678689
11508936133a1
1221603136255
13c540014708
146523951961
153651ddb9ae
hex1ea2ff98e1

131583678689 has 2 divisors, whose sum is σ = 131583678690. Its totient is φ = 131583678688.

The previous prime is 131583678631. The next prime is 131583678703. The reversal of 131583678689 is 986876385131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106205595664 + 25378083025 = 325892^2 + 159305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131583678689 is a prime.

It is not a weakly prime, because it can be changed into another prime (131583671689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65791839344 + 65791839345.

It is an arithmetic number, because the mean of its divisors is an integer number (65791839345).

Almost surely, 2131583678689 is an apocalyptic number.

It is an amenable number.

131583678689 is a deficient number, since it is larger than the sum of its proper divisors (1).

131583678689 is an equidigital number, since it uses as much as digits as its factorization.

131583678689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52254720, while the sum is 65.

The spelling of 131583678689 in words is "one hundred thirty-one billion, five hundred eighty-three million, six hundred seventy-eight thousand, six hundred eighty-nine".