115561635 has 32 divisors (see below), whose sum is σ = 212113920. Its totient is φ = 52627968.

The previous prime is 115561601. The next prime is 115561643. The reversal of 115561635 is 536165511.

It is not a de Polignac number, because 115561635 - 2⁹ = 115561123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115561596 and 115561605.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27771 + ... + 31659.

It is an arithmetic number, because the mean of its divisors is an integer number (6628560).

Almost surely, 2^115561635 is an apocalyptic number.

115561635 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115561635 is a deficient number, since it is larger than the sum of its proper divisors (96552285).

115561635 is a wasteful number, since it uses less digits than its factorization.

115561635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187.

The product of its digits is 13500, while the sum is 33.

The square root of 115561635 is about 10749.9597673666. The cubic root of 115561635 is about 487.0847799084.

The spelling of 115561635 in words is "one hundred fifteen million, five hundred sixty-one thousand, six hundred thirty-five".