115315 has 4 divisors (see below), whose sum is σ = 138384. Its totient is φ = 92248.

The previous prime is 115309. The next prime is 115319. The reversal of 115315 is 513511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115315 - 2¹³ = 107123 is a prime.

It is a Duffinian number.

115315 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (115319) 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, 11527 + ... + 11536.

It is an arithmetic number, because the mean of its divisors is an integer number (34596).

2¹¹⁵³¹⁵ is an apocalyptic number.

115315 is a deficient number, since it is larger than the sum of its proper divisors (23069).

115315 is an equidigital number, since it uses as much as digits as its factorization.

115315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23068.

The product of its digits is 75, while the sum is 16.

The square root of 115315 is about 339.5806237111. The cubic root of 115315 is about 48.6738016269.

Adding to 115315 its reverse (513511), we get a palindrome (628826).

The spelling of 115315 in words is "one hundred fifteen thousand, three hundred fifteen".