87158164 has 12 divisors (see below), whose sum is σ = 152938324. Its totient is φ = 43461504.

The previous prime is 87158153. The next prime is 87158191. The reversal of 87158164 is 46185178.

It can be written as a sum of positive squares in 2 ways, for example, as 65610000 + 21548164 = 8100^2 + 4642^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 27717 + ... + 30700.

Almost surely, 2^87158164 is an apocalyptic number.

It is an amenable number.

87158164 is a deficient number, since it is larger than the sum of its proper divisors (65780160).

87158164 is a wasteful number, since it uses less digits than its factorization.

87158164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58794 (or 58792 counting only the distinct ones).

The product of its digits is 53760, while the sum is 40.

The square root of 87158164 is about 9335.8536835150. The cubic root of 87158164 is about 443.3731177040.

The spelling of 87158164 in words is "eighty-seven million, one hundred fifty-eight thousand, one hundred sixty-four".