113638009 has 8 divisors (see below), whose sum is σ = 118688832. Its totient is φ = 108596400.

The previous prime is 113638003. The next prime is 113638043. The reversal of 113638009 is 900836311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113638009 - 2³ = 113638001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113638001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38434 + ... + 41284.

It is an arithmetic number, because the mean of its divisors is an integer number (14836104).

Almost surely, 2^113638009 is an apocalyptic number.

It is an amenable number.

113638009 is a deficient number, since it is larger than the sum of its proper divisors (5050823).

113638009 is a wasteful number, since it uses less digits than its factorization.

113638009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4607.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 113638009 is about 10660.1129918965. The cubic root of 113638009 is about 484.3669908020.

The spelling of 113638009 in words is "one hundred thirteen million, six hundred thirty-eight thousand, nine".