137044756523 has 4 divisors (see below), whose sum is σ = 140231843928. Its totient is φ = 133857669120.

The previous prime is 137044756493. The next prime is 137044756529. The reversal of 137044756523 is 325657440731.

It is a happy number.

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 137044756523 - 2¹⁰ = 137044755499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137044756529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1593543638 + ... + 1593543723.

It is an arithmetic number, because the mean of its divisors is an integer number (35057960982).

Almost surely, 2^137044756523 is an apocalyptic number.

137044756523 is a deficient number, since it is larger than the sum of its proper divisors (3187087405).

137044756523 is an equidigital number, since it uses as much as digits as its factorization.

137044756523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187087404.

The product of its (nonzero) digits is 2116800, while the sum is 47.

The spelling of 137044756523 in words is "one hundred thirty-seven billion, forty-four million, seven hundred fifty-six thousand, five hundred twenty-three".