87145032 has 32 divisors (see below), whose sum is σ = 234622080. Its totient is φ = 26813760.

The previous prime is 87145021. The next prime is 87145033. The reversal of 87145032 is 23054178.

It is not an unprimeable number, because it can be changed into a prime (87145033) 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, 139344 + ... + 139967.

It is an arithmetic number, because the mean of its divisors is an integer number (7331940).

Almost surely, 2^87145032 is an apocalyptic number.

It is an amenable number.

87145032 is an abundant number, since it is smaller than the sum of its proper divisors (147477048).

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

87145032 is a wasteful number, since it uses less digits than its factorization.

87145032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279333 (or 279329 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 87145032 is about 9335.1503469414. The cubic root of 87145032 is about 443.3508491142.

The spelling of 87145032 in words is "eighty-seven million, one hundred forty-five thousand, thirty-two".