87215151 has 32 divisors (see below), whose sum is σ = 128779200. Its totient is φ = 52254720.

The previous prime is 87215143. The next prime is 87215153. The reversal of 87215151 is 15151278.

It is not a de Polignac number, because 87215151 - 2³ = 87215143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87215153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160941 + ... + 161481.

It is an arithmetic number, because the mean of its divisors is an integer number (4024350).

Almost surely, 2^87215151 is an apocalyptic number.

87215151 is a deficient number, since it is larger than the sum of its proper divisors (41564049).

87215151 is a wasteful number, since it uses less digits than its factorization.

87215151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699.

The product of its digits is 2800, while the sum is 30.

The square root of 87215151 is about 9338.9052356259. The cubic root of 87215151 is about 443.4697275070.

The spelling of 87215151 in words is "eighty-seven million, two hundred fifteen thousand, one hundred fifty-one".