113525621 has 4 divisors (see below), whose sum is σ = 123846144. Its totient is φ = 103205100.

The previous prime is 113525611. The next prime is 113525647. The reversal of 113525621 is 126525311.

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 113525621 - 2⁶ = 113525557 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113525611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5160245 + ... + 5160266.

It is an arithmetic number, because the mean of its divisors is an integer number (30961536).

Almost surely, 2^113525621 is an apocalyptic number.

113525621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113525621 is a deficient number, since it is larger than the sum of its proper divisors (10320523).

113525621 is a wasteful number, since it uses less digits than its factorization.

113525621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10320522.

The product of its digits is 1800, while the sum is 26.

The square root of 113525621 is about 10654.8402615900. The cubic root of 113525621 is about 484.2072584678.

The spelling of 113525621 in words is "one hundred thirteen million, five hundred twenty-five thousand, six hundred twenty-one".