115642605 has 32 divisors (see below), whose sum is σ = 199793664. Its totient is φ = 56779776.

The previous prime is 115642601. The next prime is 115642663. The reversal of 115642605 is 506246511.

It is not a de Polignac number, because 115642605 - 2² = 115642601 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115642601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117877 + ... + 118853.

It is an arithmetic number, because the mean of its divisors is an integer number (6243552).

Almost surely, 2^115642605 is an apocalyptic number.

115642605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115642605 is a deficient number, since it is larger than the sum of its proper divisors (84151059).

115642605 is a wasteful number, since it uses less digits than its factorization.

115642605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 115642605 is about 10753.7251685172. The cubic root of 115642605 is about 487.1985144448.

The spelling of 115642605 in words is "one hundred fifteen million, six hundred forty-two thousand, six hundred five".