113422639 has 8 divisors (see below), whose sum is σ = 123821568. Its totient is φ = 103038360.

The previous prime is 113422627. The next prime is 113422643. The reversal of 113422639 is 936224311.

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 113422639 - 2⁷ = 113422511 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 113422639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113422669) 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, 18274 + ... + 23680.

It is an arithmetic number, because the mean of its divisors is an integer number (15477696).

Almost surely, 2^113422639 is an apocalyptic number.

113422639 is a deficient number, since it is larger than the sum of its proper divisors (10398929).

113422639 is a wasteful number, since it uses less digits than its factorization.

113422639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7325.

The product of its digits is 7776, while the sum is 31.

The square root of 113422639 is about 10650.0065258196. The cubic root of 113422639 is about 484.0608019032.

The spelling of 113422639 in words is "one hundred thirteen million, four hundred twenty-two thousand, six hundred thirty-nine".