115149515 has 8 divisors (see below), whose sum is σ = 148808688. Its totient is φ = 85033440.

The previous prime is 115149509. The next prime is 115149527. The reversal of 115149515 is 515941511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115149515 - 2⁴ = 115149499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885701 + ... + 885830.

It is an arithmetic number, because the mean of its divisors is an integer number (18601086).

Almost surely, 2^115149515 is an apocalyptic number.

115149515 is a deficient number, since it is larger than the sum of its proper divisors (33659173).

115149515 is a wasteful number, since it uses less digits than its factorization.

115149515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771549.

The product of its digits is 4500, while the sum is 32.

The square root of 115149515 is about 10730.7742031971. The cubic root of 115149515 is about 486.5050705640.

It can be divided in two parts, 11 and 5149515, that multiplied together give a palindrome (56644665).

The spelling of 115149515 in words is "one hundred fifteen million, one hundred forty-nine thousand, five hundred fifteen".