87137166 has 8 divisors (see below), whose sum is σ = 174274344. Its totient is φ = 29045720.

The previous prime is 87137161. The next prime is 87137191. The reversal of 87137166 is 66173178.

It is a sphenic number, since it is the product of 3 distinct primes.

87137166 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87137161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7261425 + ... + 7261436.

It is an arithmetic number, because the mean of its divisors is an integer number (21784293).

Almost surely, 2^87137166 is an apocalyptic number.

87137166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87137166 is a wasteful number, since it uses less digits than its factorization.

87137166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14522866.

The product of its digits is 42336, while the sum is 39.

The square root of 87137166 is about 9334.7290265974. The cubic root of 87137166 is about 443.3375092728.

The spelling of 87137166 in words is "eighty-seven million, one hundred thirty-seven thousand, one hundred sixty-six".