165130887 has 8 divisors (see below), whose sum is σ = 220714480. Its totient is φ = 109817280.

The previous prime is 165130883. The next prime is 165130897. The reversal of 165130887 is 788031561.

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

It is not a de Polignac number, because 165130887 - 2² = 165130883 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 (165130883) 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, 66064 + ... + 68517.

It is an arithmetic number, because the mean of its divisors is an integer number (27589310).

Almost surely, 2^165130887 is an apocalyptic number.

165130887 is a deficient number, since it is larger than the sum of its proper divisors (55583593).

165130887 is a wasteful number, since it uses less digits than its factorization.

165130887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134993.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 165130887 is about 12850.3263382686. The cubic root of 165130887 is about 548.6256451697.

The spelling of 165130887 in words is "one hundred sixty-five million, one hundred thirty thousand, eight hundred eighty-seven".