113279621 has 24 divisors (see below), whose sum is σ = 142912224. Its totient is φ = 88996320.

The previous prime is 113279591. The next prime is 113279629. The reversal of 113279621 is 126972311.

It is not a de Polignac number, because 113279621 - 2¹⁰ = 113278597 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113279629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103286 + ... + 104376.

It is an arithmetic number, because the mean of its divisors is an integer number (5954676).

Almost surely, 2^113279621 is an apocalyptic number.

It is an amenable number.

113279621 is a deficient number, since it is larger than the sum of its proper divisors (29632603).

113279621 is a wasteful number, since it uses less digits than its factorization.

113279621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281 (or 1274 counting only the distinct ones).

The product of its digits is 4536, while the sum is 32.

The square root of 113279621 is about 10643.2899518899. The cubic root of 113279621 is about 483.8572607449.

The spelling of 113279621 in words is "one hundred thirteen million, two hundred seventy-nine thousand, six hundred twenty-one".