113826721 has 4 divisors (see below), whose sum is σ = 114007744. Its totient is φ = 113645700.

The previous prime is 113826677. The next prime is 113826751. The reversal of 113826721 is 127628311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113826721 - 2²⁵ = 80272289 is a prime.

It is a super-2 number, since 2×113826721² = 25913044827223682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113826751) 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, 89565 + ... + 90826.

It is an arithmetic number, because the mean of its divisors is an integer number (28501936).

Almost surely, 2^113826721 is an apocalyptic number.

It is an amenable number.

113826721 is a deficient number, since it is larger than the sum of its proper divisors (181023).

113826721 is an equidigital number, since it uses as much as digits as its factorization.

113826721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181022.

The product of its digits is 4032, while the sum is 31.

The square root of 113826721 is about 10668.9606335388. The cubic root of 113826721 is about 484.6349625060.

The spelling of 113826721 in words is "one hundred thirteen million, eight hundred twenty-six thousand, seven hundred twenty-one".