87135130 has 8 divisors (see below), whose sum is σ = 156843252. Its totient is φ = 34854048.

The previous prime is 87135077. The next prime is 87135137. The reversal of 87135130 is 3153178.

It can be written as a sum of positive squares in 2 ways, for example, as 85211361 + 1923769 = 9231^2 + 1387^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (87135137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4356747 + ... + 4356766.

Almost surely, 2^87135130 is an apocalyptic number.

87135130 is a deficient number, since it is larger than the sum of its proper divisors (69708122).

87135130 is a wasteful number, since it uses less digits than its factorization.

87135130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8713520.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 87135130 is about 9334.6199708397. The cubic root of 87135130 is about 443.3340563176.

The spelling of 87135130 in words is "eighty-seven million, one hundred thirty-five thousand, one hundred thirty".