87145104 has 20 divisors (see below), whose sum is σ = 225124976. Its totient is φ = 29048352.

The previous prime is 87145067. The next prime is 87145127. The reversal of 87145104 is 40154178.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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, 907714 + ... + 907809.

Almost surely, 2^87145104 is an apocalyptic number.

It is an amenable number.

87145104 is an abundant number, since it is smaller than the sum of its proper divisors (137979872).

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

87145104 is a wasteful number, since it uses less digits than its factorization.

87145104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815534 (or 1815528 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 87145104 is about 9335.1542033327. The cubic root of 87145104 is about 443.3509712143.

The spelling of 87145104 in words is "eighty-seven million, one hundred forty-five thousand, one hundred four".