113308209 has 12 divisors (see below), whose sum is σ = 187048576. Its totient is φ = 64747512.

The previous prime is 113308183. The next prime is 113308231. The reversal of 113308209 is 902803311.

It is not a de Polignac number, because 113308209 - 2¹³ = 113300017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113308259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 899209 + ... + 899334.

Almost surely, 2^113308209 is an apocalyptic number.

It is an amenable number.

113308209 is a deficient number, since it is larger than the sum of its proper divisors (73740367).

113308209 is a wasteful number, since it uses less digits than its factorization.

113308209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798556 (or 1798553 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 113308209 is about 10644.6328729553. The cubic root of 113308209 is about 483.8979604688.

The spelling of 113308209 in words is "one hundred thirteen million, three hundred eight thousand, two hundred nine".