113553909 has 24 divisors (see below), whose sum is σ = 190029632. Its totient is φ = 63996480.

The previous prime is 113553901. The next prime is 113553929. The reversal of 113553909 is 909355311.

113553909 is a `hidden beast` number, since 1 + 13 + 553 + 90 + 9 = 666.

It is not a de Polignac number, because 113553909 - 2³ = 113553901 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 (113553901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7747 + ... + 16944.

Almost surely, 2^113553909 is an apocalyptic number.

It is an amenable number.

113553909 is a deficient number, since it is larger than the sum of its proper divisors (76475723).

113553909 is a wasteful number, since it uses less digits than its factorization.

113553909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24777 (or 24774 counting only the distinct ones).

The product of its (nonzero) digits is 18225, while the sum is 36.

The square root of 113553909 is about 10656.1676507082. The cubic root of 113553909 is about 484.2474729359.

The spelling of 113553909 in words is "one hundred thirteen million, five hundred fifty-three thousand, nine hundred nine".