115561315 has 16 divisors (see below), whose sum is σ = 146458368. Its totient is φ = 87356896.

The previous prime is 115561307. The next prime is 115561319. The reversal of 115561315 is 513165511.

It is a cyclic number.

It is not a de Polignac number, because 115561315 - 2³ = 115561307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115561319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3492 + ... + 15598.

It is an arithmetic number, because the mean of its divisors is an integer number (9153648).

Almost surely, 2^115561315 is an apocalyptic number.

115561315 is a deficient number, since it is larger than the sum of its proper divisors (30897053).

115561315 is a wasteful number, since it uses less digits than its factorization.

115561315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12218.

The product of its digits is 2250, while the sum is 28.

The square root of 115561315 is about 10749.9448835796. The cubic root of 115561315 is about 487.0843303149.

The spelling of 115561315 in words is "one hundred fifteen million, five hundred sixty-one thousand, three hundred fifteen".