165231146 has 16 divisors (see below), whose sum is σ = 250767168. Its totient is φ = 81648000.

The previous prime is 165231119. The next prime is 165231151. The reversal of 165231146 is 641132561.

It is a happy number.

165231146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62426 + ... + 65018.

It is an arithmetic number, because the mean of its divisors is an integer number (15672948).

Almost surely, 2^165231146 is an apocalyptic number.

165231146 is a deficient number, since it is larger than the sum of its proper divisors (85536022).

165231146 is a wasteful number, since it uses less digits than its factorization.

165231146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957.

The product of its digits is 4320, while the sum is 29.

The square root of 165231146 is about 12854.2267756563. The cubic root of 165231146 is about 548.7366551515.

The spelling of 165231146 in words is "one hundred sixty-five million, two hundred thirty-one thousand, one hundred forty-six".