87187130 has 16 divisors (see below), whose sum is σ = 157538304. Its totient is φ = 34741200.

The previous prime is 87187129. The next prime is 87187147. The reversal of 87187130 is 3178178.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13946 + ... + 19205.

It is an arithmetic number, because the mean of its divisors is an integer number (9846144).

Almost surely, 2^87187130 is an apocalyptic number.

87187130 is a deficient number, since it is larger than the sum of its proper divisors (70351174).

87187130 is a wasteful number, since it uses less digits than its factorization.

87187130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33421.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 87187130 is about 9337.4048857271. The cubic root of 87187130 is about 443.4222288934.

The spelling of 87187130 in words is "eighty-seven million, one hundred eighty-seven thousand, one hundred thirty".