113630409 has 6 divisors (see below), whose sum is σ = 164132826. Its totient is φ = 75753600.

The previous prime is 113630389. The next prime is 113630411. The reversal of 113630409 is 904036311.

It can be written as a sum of positive squares in only one way, i.e., 111767184 + 1863225 = 10572^2 + 1365^2 .

It is not a de Polignac number, because 113630409 - 2⁹ = 113629897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113630809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6312792 + ... + 6312809.

It is an arithmetic number, because the mean of its divisors is an integer number (27355471).

Almost surely, 2^113630409 is an apocalyptic number.

It is an amenable number.

113630409 is a deficient number, since it is larger than the sum of its proper divisors (50502417).

113630409 is a wasteful number, since it uses less digits than its factorization.

113630409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12625607 (or 12625604 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 113630409 is about 10659.7565169191. The cubic root of 113630409 is about 484.3561925628.

The spelling of 113630409 in words is "one hundred thirteen million, six hundred thirty thousand, four hundred nine".