87128162 has 16 divisors (see below), whose sum is σ = 150960672. Its totient is φ = 37273920.

The previous prime is 87128161. The next prime is 87128183. The reversal of 87128162 is 26182178.

It is a super-2 number, since 2×87128162² = 15182633226996488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87128161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116108 + ... + 116855.

It is an arithmetic number, because the mean of its divisors is an integer number (9435042).

Almost surely, 2^87128162 is an apocalyptic number.

87128162 is a deficient number, since it is larger than the sum of its proper divisors (63832510).

87128162 is a wasteful number, since it uses less digits than its factorization.

87128162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232993.

The product of its digits is 10752, while the sum is 35.

The square root of 87128162 is about 9334.2467291153. The cubic root of 87128162 is about 443.3222385274.

The spelling of 87128162 in words is "eighty-seven million, one hundred twenty-eight thousand, one hundred sixty-two".