115898515 has 4 divisors (see below), whose sum is σ = 139078224. Its totient is φ = 92718808.

The previous prime is 115898477. The next prime is 115898527. The reversal of 115898515 is 515898511.

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 115898515 - 2¹¹ = 115896467 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11589847 + ... + 11589856.

It is an arithmetic number, because the mean of its divisors is an integer number (34769556).

Almost surely, 2^115898515 is an apocalyptic number.

115898515 is a deficient number, since it is larger than the sum of its proper divisors (23179709).

115898515 is an equidigital number, since it uses as much as digits as its factorization.

115898515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23179708.

The product of its digits is 72000, while the sum is 43.

The square root of 115898515 is about 10765.6172605197. The cubic root of 115898515 is about 487.5576298296.

The spelling of 115898515 in words is "one hundred fifteen million, eight hundred ninety-eight thousand, five hundred fifteen".