2115792731 has 16 divisors (see below), whose sum is σ = 2308610304. Its totient is φ = 1927403424.

The previous prime is 2115792727. The next prime is 2115792761. The reversal of 2115792731 is 1372975112.

It is a cyclic number.

It is not a de Polignac number, because 2115792731 - 2² = 2115792727 is a prime.

It is a super-2 number, since 2×2115792731² = 8953157761104876722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2115792761) 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, 408500 + ... + 413646.

It is an arithmetic number, because the mean of its divisors is an integer number (144288144).

Almost surely, 2^2115792731 is an apocalyptic number.

2115792731 is a deficient number, since it is larger than the sum of its proper divisors (192817573).

2115792731 is a wasteful number, since it uses less digits than its factorization.

2115792731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5570.

The product of its digits is 26460, while the sum is 38.

The square root of 2115792731 is about 45997.7470209140. The cubic root of 2115792731 is about 1283.7812850276.

The spelling of 2115792731 in words is "two billion, one hundred fifteen million, seven hundred ninety-two thousand, seven hundred thirty-one".