87075155 has 4 divisors (see below), whose sum is σ = 104490192. Its totient is φ = 69660120.

The previous prime is 87075127. The next prime is 87075169. The reversal of 87075155 is 55157078.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87075155 - 2⁸ = 87074899 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, 8707511 + ... + 8707520.

It is an arithmetic number, because the mean of its divisors is an integer number (26122548).

Almost surely, 2^87075155 is an apocalyptic number.

87075155 is a deficient number, since it is larger than the sum of its proper divisors (17415037).

87075155 is a wasteful number, since it uses less digits than its factorization.

87075155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17415036.

The product of its (nonzero) digits is 49000, while the sum is 38.

The square root of 87075155 is about 9331.4069142868. The cubic root of 87075155 is about 443.2323175480.

The spelling of 87075155 in words is "eighty-seven million, seventy-five thousand, one hundred fifty-five".