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137709451 = 1112519041
BaseRepresentation
bin10000011010101…
…00011110001011
3100121010100212001
420031110132023
5240223200301
621355331431
73261340165
oct1015243613
9317110761
10137709451
1170808170
123a150b77
13226b78a9
1414409935
15c152c01
hex835478b

137709451 has 4 divisors (see below), whose sum is σ = 150228504. Its totient is φ = 125190400.

The previous prime is 137709437. The next prime is 137709457. The reversal of 137709451 is 154907731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 137709451 - 25 = 137709419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137709451.

It is not an unprimeable number, because it can be changed into a prime (137709457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6259510 + ... + 6259531.

It is an arithmetic number, because the mean of its divisors is an integer number (37557126).

Almost surely, 2137709451 is an apocalyptic number.

137709451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

137709451 is a deficient number, since it is larger than the sum of its proper divisors (12519053).

137709451 is a wasteful number, since it uses less digits than its factorization.

137709451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12519052.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 137709451 is about 11734.9670216835. The cubic root of 137709451 is about 516.4020000451.

The spelling of 137709451 in words is "one hundred thirty-seven million, seven hundred nine thousand, four hundred fifty-one".

Divisors: 1 11 12519041 137709451