113936405 has 16 divisors (see below), whose sum is σ = 149655168. Its totient is φ = 82584000.

The previous prime is 113936401. The next prime is 113936419. The reversal of 113936405 is 504639311.

It is not a de Polignac number, because 113936405 - 2² = 113936401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113936401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13775 + ... + 20435.

It is an arithmetic number, because the mean of its divisors is an integer number (9353448).

Almost surely, 2^113936405 is an apocalyptic number.

It is an amenable number.

113936405 is a deficient number, since it is larger than the sum of its proper divisors (35718763).

113936405 is a wasteful number, since it uses less digits than its factorization.

113936405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6988.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 113936405 is about 10674.0997278459. The cubic root of 113936405 is about 484.7905780940.

The spelling of 113936405 in words is "one hundred thirteen million, nine hundred thirty-six thousand, four hundred five".