125494250931 has 24 divisors (see below), whose sum is σ = 210082938624. Its totient is φ = 70700983920.

The previous prime is 125494250899. The next prime is 125494250939. The reversal of 125494250931 is 139052494521.

It is a happy number.

125494250931 is a `hidden beast` number, since 1 + 2 + 54 + 94 + 2 + 509 + 3 + 1 = 666.

It is not a de Polignac number, because 125494250931 - 2⁵ = 125494250899 is a prime.

It is a super-2 number, since 2×125494250931² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125494250939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14023501 + ... + 14032446.

It is an arithmetic number, because the mean of its divisors is an integer number (8753455776).

Almost surely, 2^125494250931 is an apocalyptic number.

125494250931 is a deficient number, since it is larger than the sum of its proper divisors (84588687693).

125494250931 is a wasteful number, since it uses less digits than its factorization.

125494250931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28056031 (or 28056028 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 125494250931 in words is "one hundred twenty-five billion, four hundred ninety-four million, two hundred fifty thousand, nine hundred thirty-one".