115142215 has 16 divisors (see below), whose sum is σ = 142960896. Its totient is φ = 89027040.

The previous prime is 115142177. The next prime is 115142231. The reversal of 115142215 is 512241511.

It is not a de Polignac number, because 115142215 - 2⁷ = 115142087 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 148569 + ... + 149341.

It is an arithmetic number, because the mean of its divisors is an integer number (8935056).

Almost surely, 2^115142215 is an apocalyptic number.

115142215 is a deficient number, since it is larger than the sum of its proper divisors (27818681).

115142215 is an frugal number, since it uses more digits than its factorization.

115142215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871 (or 809 counting only the distinct ones).

The product of its digits is 400, while the sum is 22.

The square root of 115142215 is about 10730.4340545944. The cubic root of 115142215 is about 486.4947895478.

Adding to 115142215 its reverse (512241511), we get a palindrome (627383726).

The spelling of 115142215 in words is "one hundred fifteen million, one hundred forty-two thousand, two hundred fifteen".