115021615 has 8 divisors (see below), whose sum is σ = 138619728. Its totient is φ = 91621440.

The previous prime is 115021561. The next prime is 115021651. The reversal of 115021615 is 516120511.

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 115021615 - 2¹⁵ = 114988847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48201 + ... + 50530.

It is an arithmetic number, because the mean of its divisors is an integer number (17327466).

Almost surely, 2^115021615 is an apocalyptic number.

115021615 is a deficient number, since it is larger than the sum of its proper divisors (23598113).

115021615 is an equidigital number, since it uses as much as digits as its factorization.

115021615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98969.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 115021615 is about 10724.8130519837. The cubic root of 115021615 is about 486.3248786029.

The spelling of 115021615 in words is "one hundred fifteen million, twenty-one thousand, six hundred fifteen".