113224639 has 4 divisors (see below), whose sum is σ = 123517800. Its totient is φ = 102931480.

The previous prime is 113224637. The next prime is 113224681. The reversal of 113224639 is 936422311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113224639 - 2¹ = 113224637 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 113224639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113224637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5146564 + ... + 5146585.

It is an arithmetic number, because the mean of its divisors is an integer number (30879450).

Almost surely, 2^113224639 is an apocalyptic number.

113224639 is a deficient number, since it is larger than the sum of its proper divisors (10293161).

113224639 is a wasteful number, since it uses less digits than its factorization.

113224639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10293160.

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

The square root of 113224639 is about 10640.7066964558. The cubic root of 113224639 is about 483.7789655641.

The spelling of 113224639 in words is "one hundred thirteen million, two hundred twenty-four thousand, six hundred thirty-nine".