113849639 has 8 divisors (see below), whose sum is σ = 117854208. Its totient is φ = 109865880.

The previous prime is 113849633. The next prime is 113849641. The reversal of 113849639 is 936948311.

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 113849639 - 2⁴ = 113849623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113849639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113849633) 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, 6374 + ... + 16380.

It is an arithmetic number, because the mean of its divisors is an integer number (14731776).

Almost surely, 2^113849639 is an apocalyptic number.

113849639 is a deficient number, since it is larger than the sum of its proper divisors (4004569).

113849639 is a wasteful number, since it uses less digits than its factorization.

113849639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10405.

The product of its digits is 139968, while the sum is 44.

The square root of 113849639 is about 10670.0346297470. The cubic root of 113849639 is about 484.6674859728.

The spelling of 113849639 in words is "one hundred thirteen million, eight hundred forty-nine thousand, six hundred thirty-nine".