113538909 has 8 divisors (see below), whose sum is σ = 165147552. Its totient is φ = 68811440.

The previous prime is 113538883. The next prime is 113538911. The reversal of 113538909 is 909835311.

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 113538909 - 2⁷ = 113538781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113538949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1720254 + ... + 1720319.

It is an arithmetic number, because the mean of its divisors is an integer number (20643444).

Almost surely, 2^113538909 is an apocalyptic number.

It is an amenable number.

113538909 is a deficient number, since it is larger than the sum of its proper divisors (51608643).

113538909 is a wasteful number, since it uses less digits than its factorization.

113538909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440587.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 113538909 is about 10655.4638097081. The cubic root of 113538909 is about 484.2261496366.

The spelling of 113538909 in words is "one hundred thirteen million, five hundred thirty-eight thousand, nine hundred nine".