87130112 has 32 divisors (see below), whose sum is σ = 174323100. Its totient is φ = 43548672.

The previous prime is 87130103. The next prime is 87130139. The reversal of 87130112 is 21103178.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31439 + ... + 34097.

Almost surely, 2^87130112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87130112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87161550).

87130112 is an abundant number, since it is smaller than the sum of its proper divisors (87192988).

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

87130112 is an frugal number, since it uses more digits than its factorization.

87130112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689 (or 2661 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 87130112 is about 9334.3511825943. The cubic root of 87130112 is about 443.3255458083.

The spelling of 87130112 in words is "eighty-seven million, one hundred thirty thousand, one hundred twelve".