2115084931 has 2 divisors, whose sum is σ = 2115084932. Its totient is φ = 2115084930.

The previous prime is 2115084871. The next prime is 2115084967. The reversal of 2115084931 is 1394805112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2115084931 is a prime.

It is a super-2 number, since 2×2115084931² = 8947168530686549522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2115084031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057542465 + 1057542466.

It is an arithmetic number, because the mean of its divisors is an integer number (1057542466).

Almost surely, 2^2115084931 is an apocalyptic number.

2115084931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115084931 is an equidigital number, since it uses as much as digits as its factorization.

2115084931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 2115084931 is about 45990.0525222575. The cubic root of 2115084931 is about 1283.6381138300.

The spelling of 2115084931 in words is "two billion, one hundred fifteen million, eighty-four thousand, nine hundred thirty-one".