113645001 has 16 divisors (see below), whose sum is σ = 161796096. Its totient is φ = 70782096.

The previous prime is 113644991. The next prime is 113645009. The reversal of 113645001 is 100546311.

It is not a de Polignac number, because 113645001 - 2⁵ = 113644969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113645009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16185 + ... + 22118.

It is an arithmetic number, because the mean of its divisors is an integer number (10112256).

Almost surely, 2^113645001 is an apocalyptic number.

It is an amenable number.

113645001 is a deficient number, since it is larger than the sum of its proper divisors (48151095).

113645001 is a wasteful number, since it uses less digits than its factorization.

113645001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38372.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 113645001 is about 10660.4409383477. The cubic root of 113645001 is about 484.3769247568.

The spelling of 113645001 in words is "one hundred thirteen million, six hundred forty-five thousand, one".