113315521 has 8 divisors (see below), whose sum is σ = 123840288. Its totient is φ = 102828000.

The previous prime is 113315483. The next prime is 113315539. The reversal of 113315521 is 125513311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113315521 - 2⁹ = 113315009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113315492 and 113315501.

It is not an unprimeable number, because it can be changed into a prime (113315921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2740 + ... + 15301.

It is an arithmetic number, because the mean of its divisors is an integer number (15480036).

Almost surely, 2^113315521 is an apocalyptic number.

113315521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113315521 is a deficient number, since it is larger than the sum of its proper divisors (10524767).

113315521 is a wasteful number, since it uses less digits than its factorization.

113315521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18623.

The product of its digits is 450, while the sum is 22.

The square root of 113315521 is about 10644.9763268877. The cubic root of 113315521 is about 483.9083692050.

Adding to 113315521 its reverse (125513311), we get a palindrome (238828832).

The spelling of 113315521 in words is "one hundred thirteen million, three hundred fifteen thousand, five hundred twenty-one".