115621315 has 8 divisors (see below), whose sum is σ = 139358160. Its totient is φ = 92088672.

The previous prime is 115621313. The next prime is 115621339. The reversal of 115621315 is 513126511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 115621315 - 2¹ = 115621313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115621315.

It is not an unprimeable number, because it can be changed into a prime (115621313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49800 + ... + 52069.

It is an arithmetic number, because the mean of its divisors is an integer number (17419770).

Almost surely, 2^115621315 is an apocalyptic number.

115621315 is a deficient number, since it is larger than the sum of its proper divisors (23736845).

115621315 is a wasteful number, since it uses less digits than its factorization.

115621315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102101.

The product of its digits is 900, while the sum is 25.

The square root of 115621315 is about 10752.7352334185. The cubic root of 115621315 is about 487.1686145852.

Adding to 115621315 its reverse (513126511), we get a palindrome (628747826).

The spelling of 115621315 in words is "one hundred fifteen million, six hundred twenty-one thousand, three hundred fifteen".