113442513 has 16 divisors (see below), whose sum is σ = 161631360. Its totient is φ = 70523136.

The previous prime is 113442467. The next prime is 113442523. The reversal of 113442513 is 315244311.

It is a happy number.

It is not a de Polignac number, because 113442513 - 2⁹ = 113442001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113442523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4645 + ... + 15762.

It is an arithmetic number, because the mean of its divisors is an integer number (10101960).

Almost surely, 2^113442513 is an apocalyptic number.

It is an amenable number.

113442513 is a deficient number, since it is larger than the sum of its proper divisors (48188847).

113442513 is a wasteful number, since it uses less digits than its factorization.

113442513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20536.

The product of its digits is 1440, while the sum is 24.

The square root of 113442513 is about 10650.9395360222. The cubic root of 113442513 is about 484.0890727512.

Adding to 113442513 its reverse (315244311), we get a palindrome (428686824).

The spelling of 113442513 in words is "one hundred thirteen million, four hundred forty-two thousand, five hundred thirteen".