115280087 has 16 divisors (see below), whose sum is σ = 132004320. Its totient is φ = 99792000.

The previous prime is 115280063. The next prime is 115280093. The reversal of 115280087 is 780082511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 115280087 - 2¹⁴ = 115263703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115280027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22637 + ... + 27257.

It is an arithmetic number, because the mean of its divisors is an integer number (8250270).

Almost surely, 2^115280087 is an apocalyptic number.

115280087 is a deficient number, since it is larger than the sum of its proper divisors (16724233).

115280087 is a wasteful number, since it uses less digits than its factorization.

115280087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 115280087 is about 10736.8564766416. The cubic root of 115280087 is about 486.6888893858.

The spelling of 115280087 in words is "one hundred fifteen million, two hundred eighty thousand, eighty-seven".