125137056831 has 16 divisors (see below), whose sum is σ = 177849756000. Its totient is φ = 77990402048.

The previous prime is 125137056799. The next prime is 125137056833. The reversal of 125137056831 is 138650731521.

It is a cyclic number.

It is not a de Polignac number, because 125137056831 - 2⁵ = 125137056799 is a prime.

It is a super-2 number, since 2×125137056831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125137056833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8226186 + ... + 8241383.

It is an arithmetic number, because the mean of its divisors is an integer number (11115609750).

Almost surely, 2^125137056831 is an apocalyptic number.

125137056831 is a deficient number, since it is larger than the sum of its proper divisors (52712699169).

125137056831 is a wasteful number, since it uses less digits than its factorization.

125137056831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16467738.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 125137056831 in words is "one hundred twenty-five billion, one hundred thirty-seven million, fifty-six thousand, eight hundred thirty-one".