87253131 has 8 divisors (see below), whose sum is σ = 132957184. Its totient is φ = 49858920.

The previous prime is 87253123. The next prime is 87253147. The reversal of 87253131 is 13135278.

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

It is not a de Polignac number, because 87253131 - 2³ = 87253123 is a prime.

It is a super-2 number, since 2×87253131² = 15226217738606322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87253151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2077435 + ... + 2077476.

It is an arithmetic number, because the mean of its divisors is an integer number (16619648).

Almost surely, 2^87253131 is an apocalyptic number.

87253131 is a deficient number, since it is larger than the sum of its proper divisors (45704053).

87253131 is a wasteful number, since it uses less digits than its factorization.

87253131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154921.

The product of its digits is 5040, while the sum is 30.

The square root of 87253131 is about 9340.9384432186. The cubic root of 87253131 is about 443.5340914612.

The spelling of 87253131 in words is "eighty-seven million, two hundred fifty-three thousand, one hundred thirty-one".