87520142 has 8 divisors (see below), whose sum is σ = 131371632. Its totient is φ = 43729600.

The previous prime is 87520123. The next prime is 87520151. The reversal of 87520142 is 24102578.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11459 + ... + 17502.

It is an arithmetic number, because the mean of its divisors is an integer number (16421454).

Almost surely, 2^87520142 is an apocalyptic number.

87520142 is a deficient number, since it is larger than the sum of its proper divisors (43851490).

87520142 is a wasteful number, since it uses less digits than its factorization.

87520142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30474.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 87520142 is about 9355.2200401701. The cubic root of 87520142 is about 443.9860633290.

The spelling of 87520142 in words is "eighty-seven million, five hundred twenty thousand, one hundred forty-two".