113757621 has 4 divisors (see below), whose sum is σ = 151676832. Its totient is φ = 75838412.

The previous prime is 113757607. The next prime is 113757641. The reversal of 113757621 is 126757311.

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 113757621 - 2⁹ = 113757109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113757601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18959601 + ... + 18959606.

It is an arithmetic number, because the mean of its divisors is an integer number (37919208).

Almost surely, 2^113757621 is an apocalyptic number.

It is an amenable number.

113757621 is a deficient number, since it is larger than the sum of its proper divisors (37919211).

113757621 is an equidigital number, since it uses as much as digits as its factorization.

113757621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37919210.

The product of its digits is 8820, while the sum is 33.

The square root of 113757621 is about 10665.7217758575. The cubic root of 113757621 is about 484.5368746569.

The spelling of 113757621 in words is "one hundred thirteen million, seven hundred fifty-seven thousand, six hundred twenty-one".