115215415 has 16 divisors (see below), whose sum is σ = 161236800. Its totient is φ = 79003680.

The previous prime is 115215391. The next prime is 115215433. The reversal of 115215415 is 514512511.

It is not a de Polignac number, because 115215415 - 2⁵ = 115215383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115215415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31876 + ... + 35305.

It is an arithmetic number, because the mean of its divisors is an integer number (10077300).

Almost surely, 2^115215415 is an apocalyptic number.

115215415 is a deficient number, since it is larger than the sum of its proper divisors (46021385).

115215415 is an frugal number, since it uses more digits than its factorization.

115215415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67207 (or 67193 counting only the distinct ones).

The product of its digits is 1000, while the sum is 25.

The square root of 115215415 is about 10733.8443718921. The cubic root of 115215415 is about 486.5978617204.

Adding to 115215415 its reverse (514512511), we get a palindrome (629727926).

The spelling of 115215415 in words is "one hundred fifteen million, two hundred fifteen thousand, four hundred fifteen".