165134986 has 16 divisors (see below), whose sum is σ = 258910848. Its totient is φ = 78843600.

The previous prime is 165134951. The next prime is 165134987. The reversal of 165134986 is 689431561.

165134986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (165134987) 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, 27691 + ... + 33121.

It is an arithmetic number, because the mean of its divisors is an integer number (16181928).

Almost surely, 2^165134986 is an apocalyptic number.

165134986 is a deficient number, since it is larger than the sum of its proper divisors (93775862).

165134986 is a wasteful number, since it uses less digits than its factorization.

165134986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6117.

The product of its digits is 155520, while the sum is 43.

The square root of 165134986 is about 12850.4858273919. The cubic root of 165134986 is about 548.6301845948.

The spelling of 165134986 in words is "one hundred sixty-five million, one hundred thirty-four thousand, nine hundred eighty-six".