115939125931 has 8 divisors (see below), whose sum is σ = 117797670144. Its totient is φ = 114094933800.

The previous prime is 115939125923. The next prime is 115939125943. The reversal of 115939125931 is 139521939511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115939125931 - 2³ = 115939125923 is a prime.

It is a super-2 number, since 2×115939125931² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115939125901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3571735 + ... + 3604048.

It is an arithmetic number, because the mean of its divisors is an integer number (14724708768).

Almost surely, 2^115939125931 is an apocalyptic number.

115939125931 is a deficient number, since it is larger than the sum of its proper divisors (1858544213).

115939125931 is a wasteful number, since it uses less digits than its factorization.

115939125931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7176041.

The product of its digits is 328050, while the sum is 49.

The spelling of 115939125931 in words is "one hundred fifteen billion, nine hundred thirty-nine million, one hundred twenty-five thousand, nine hundred thirty-one".