115561395 has 12 divisors (see below), whose sum is σ = 200306496. Its totient is φ = 61632720.

The previous prime is 115561373. The next prime is 115561417. The reversal of 115561395 is 593165511.

115561395 is a `hidden beast` number, since 1 + 1 + 5 + 561 + 3 + 95 = 666.

It is an interprime number because it is at equal distance from previous prime (115561373) and next prime (115561417).

It is not a de Polignac number, because 115561395 - 2⁸ = 115561139 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1283971 + ... + 1284060.

It is an arithmetic number, because the mean of its divisors is an integer number (16692208).

Almost surely, 2^115561395 is an apocalyptic number.

115561395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115561395 is a deficient number, since it is larger than the sum of its proper divisors (84745101).

115561395 is a wasteful number, since it uses less digits than its factorization.

115561395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568042 (or 2568039 counting only the distinct ones).

The product of its digits is 20250, while the sum is 36.

The square root of 115561395 is about 10749.9486045283. The cubic root of 115561395 is about 487.0844427133.

The spelling of 115561395 in words is "one hundred fifteen million, five hundred sixty-one thousand, three hundred ninety-five".