115280815 has 24 divisors (see below), whose sum is σ = 150707088. Its totient is φ = 84614400.

The previous prime is 115280741. The next prime is 115280827. The reversal of 115280815 is 518082511.

It is not a de Polignac number, because 115280815 - 2⁹ = 115280303 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191515 + ... + 192115.

It is an arithmetic number, because the mean of its divisors is an integer number (6279462).

Almost surely, 2^115280815 is an apocalyptic number.

115280815 is a deficient number, since it is larger than the sum of its proper divisors (35426273).

115280815 is a wasteful number, since it uses less digits than its factorization.

115280815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 31.

The square root of 115280815 is about 10736.8903785035. The cubic root of 115280815 is about 486.6899138725.

The spelling of 115280815 in words is "one hundred fifteen million, two hundred eighty thousand, eight hundred fifteen".