113442215 has 4 divisors (see below), whose sum is σ = 136130664. Its totient is φ = 90753768.

The previous prime is 113442181. The next prime is 113442221. The reversal of 113442215 is 512244311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113442215 - 2⁶ = 113442151 is a prime.

It is a super-2 number, since 2×113442215² = 25738272288212450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 11344217 + ... + 11344226.

It is an arithmetic number, because the mean of its divisors is an integer number (34032666).

Almost surely, 2^113442215 is an apocalyptic number.

113442215 is a deficient number, since it is larger than the sum of its proper divisors (22688449).

113442215 is an equidigital number, since it uses as much as digits as its factorization.

113442215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22688448.

The product of its digits is 960, while the sum is 23.

The square root of 113442215 is about 10650.9255466368. The cubic root of 113442215 is about 484.0886488693.

Adding to 113442215 its reverse (512244311), we get a palindrome (625686526).

The spelling of 113442215 in words is "one hundred thirteen million, four hundred forty-two thousand, two hundred fifteen".