113243639 has 8 divisors (see below), whose sum is σ = 116025360. Its totient is φ = 110468736.

The previous prime is 113243617. The next prime is 113243653. The reversal of 113243639 is 936342311.

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 113243639 - 2¹² = 113239543 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 (113243609) 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, 52127 + ... + 54255.

It is an arithmetic number, because the mean of its divisors is an integer number (14503170).

Almost surely, 2^113243639 is an apocalyptic number.

113243639 is a deficient number, since it is larger than the sum of its proper divisors (2781721).

113243639 is a wasteful number, since it uses less digits than its factorization.

113243639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3409.

The product of its digits is 11664, while the sum is 32.

The square root of 113243639 is about 10641.5994568486. The cubic root of 113243639 is about 483.8060247105.

The spelling of 113243639 in words is "one hundred thirteen million, two hundred forty-three thousand, six hundred thirty-nine".