113639851 has 8 divisors (see below), whose sum is σ = 123134480. Its totient is φ = 104252832.

The previous prime is 113639833. The next prime is 113639873. The reversal of 113639851 is 158936311.

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 113639851 - 2¹³ = 113631659 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 113639851.

It is not an unprimeable number, because it can be changed into a prime (113639881) 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, 24696 + ... + 28933.

It is an arithmetic number, because the mean of its divisors is an integer number (15391810).

Almost surely, 2^113639851 is an apocalyptic number.

113639851 is a deficient number, since it is larger than the sum of its proper divisors (9494629).

113639851 is a wasteful number, since it uses less digits than its factorization.

113639851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53805.

The product of its digits is 19440, while the sum is 37.

The square root of 113639851 is about 10660.1993883792. The cubic root of 113639851 is about 484.3696078817.

The spelling of 113639851 in words is "one hundred thirteen million, six hundred thirty-nine thousand, eight hundred fifty-one".