87134164 has 24 divisors (see below), whose sum is σ = 165731720. Its totient is φ = 39844224.

The previous prime is 87134141. The next prime is 87134191. The reversal of 87134164 is 46143178.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 85264 + 87048900 = 292^2 + 9330^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2019 + ... + 13354.

Almost surely, 2^87134164 is an apocalyptic number.

It is an amenable number.

87134164 is a deficient number, since it is larger than the sum of its proper divisors (78597556).

87134164 is a wasteful number, since it uses less digits than its factorization.

87134164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15499 (or 15497 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 87134164 is about 9334.5682278293. The cubic root of 87134164 is about 443.3324180106.

The spelling of 87134164 in words is "eighty-seven million, one hundred thirty-four thousand, one hundred sixty-four".