115878615 has 8 divisors (see below), whose sum is σ = 185405808. Its totient is φ = 61801920.

The previous prime is 115878599. The next prime is 115878619. The reversal of 115878615 is 516878511.

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

It is not a de Polignac number, because 115878615 - 2⁴ = 115878599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115878619) 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, 3862606 + ... + 3862635.

It is an arithmetic number, because the mean of its divisors is an integer number (23175726).

Almost surely, 2^115878615 is an apocalyptic number.

115878615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115878615 is a deficient number, since it is larger than the sum of its proper divisors (69527193).

115878615 is an equidigital number, since it uses as much as digits as its factorization.

115878615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7725249.

The product of its digits is 67200, while the sum is 42.

The square root of 115878615 is about 10764.6929821523. The cubic root of 115878615 is about 487.5297233685.

It can be divided in two parts, 11587 and 8615, that added together give a palindrome (20202).

The spelling of 115878615 in words is "one hundred fifteen million, eight hundred seventy-eight thousand, six hundred fifteen".