115626012731 has 4 divisors (see below), whose sum is σ = 115900659264. Its totient is φ = 115351366200.

The previous prime is 115626012713. The next prime is 115626012739. The reversal of 115626012731 is 137210626511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 137210626511 = 7 ⋅19601518073.

It is a cyclic number.

It is not a de Polignac number, because 115626012731 - 2²² = 115621818427 is a prime.

It is a super-2 number, since 2×115626012731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115626012691 and 115626012700.

It is not an unprimeable number, because it can be changed into a prime (115626012739) 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, 137322635 + ... + 137323476.

It is an arithmetic number, because the mean of its divisors is an integer number (28975164816).

Almost surely, 2^115626012731 is an apocalyptic number.

115626012731 is a deficient number, since it is larger than the sum of its proper divisors (274646533).

115626012731 is an equidigital number, since it uses as much as digits as its factorization.

115626012731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274646532.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 115626012731 in words is "one hundred fifteen billion, six hundred twenty-six million, twelve thousand, seven hundred thirty-one".