115215299 has 4 divisors (see below), whose sum is σ = 118329264. Its totient is φ = 112101336.

The previous prime is 115215241. The next prime is 115215301. The reversal of 115215299 is 992512511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 992512511 = 1697 ⋅584863.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115215299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115215899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1556927 + ... + 1557000.

It is an arithmetic number, because the mean of its divisors is an integer number (29582316).

Almost surely, 2^115215299 is an apocalyptic number.

115215299 is a deficient number, since it is larger than the sum of its proper divisors (3113965).

115215299 is an equidigital number, since it uses as much as digits as its factorization.

115215299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113964.

The product of its digits is 8100, while the sum is 35.

The square root of 115215299 is about 10733.8389684213. The cubic root of 115215299 is about 486.5976984166.

The spelling of 115215299 in words is "one hundred fifteen million, two hundred fifteen thousand, two hundred ninety-nine".