130887642 has 32 divisors (see below), whose sum is σ = 270950400. Its totient is φ = 42107760.

The previous prime is 130887619. The next prime is 130887667. The reversal of 130887642 is 246788031.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 130887642.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92859 + ... + 94257.

It is an arithmetic number, because the mean of its divisors is an integer number (8467200).

Almost surely, 2^130887642 is an apocalyptic number.

130887642 is an abundant number, since it is smaller than the sum of its proper divisors (140062758).

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

130887642 is a wasteful number, since it uses less digits than its factorization.

130887642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 130887642 is about 11440.6137073148. The cubic root of 130887642 is about 507.7300656350.

The spelling of 130887642 in words is "one hundred thirty million, eight hundred eighty-seven thousand, six hundred forty-two".