87135023 has 8 divisors (see below), whose sum is σ = 89446656. Its totient is φ = 84852000.

The previous prime is 87135019. The next prime is 87135031. The reversal of 87135023 is 32053178.

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

It is a cyclic number.

It is not a de Polignac number, because 87135023 - 2² = 87135019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87137023) 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, 911 + ... + 13232.

It is an arithmetic number, because the mean of its divisors is an integer number (11180832).

Almost surely, 2^87135023 is an apocalyptic number.

87135023 is a deficient number, since it is larger than the sum of its proper divisors (2311633).

87135023 is a wasteful number, since it uses less digits than its factorization.

87135023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14305.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 87135023 is about 9334.6142394852. The cubic root of 87135023 is about 443.3338748494. Note that the first 3 decimals are identical.

The spelling of 87135023 in words is "eighty-seven million, one hundred thirty-five thousand, twenty-three".