113244821 has 4 divisors (see below), whose sum is σ = 113544000. Its totient is φ = 112945644.

The previous prime is 113244751. The next prime is 113244839. The reversal of 113244821 is 128442311.

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 113244821 - 2²² = 109050517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113244221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149021 + ... + 149778.

It is an arithmetic number, because the mean of its divisors is an integer number (28386000).

Almost surely, 2^113244821 is an apocalyptic number.

It is an amenable number.

113244821 is a deficient number, since it is larger than the sum of its proper divisors (299179).

113244821 is an equidigital number, since it uses as much as digits as its factorization.

113244821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299178.

The product of its digits is 1536, while the sum is 26.

The square root of 113244821 is about 10641.6549934679. The cubic root of 113244821 is about 483.8077079742.

The spelling of 113244821 in words is "one hundred thirteen million, two hundred forty-four thousand, eight hundred twenty-one".