165144912 has 40 divisors (see below), whose sum is σ = 438159456. Its totient is φ = 53559936.

The previous prime is 165144911. The next prime is 165144989. The reversal of 165144912 is 219441561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165144911) 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, 44718 + ... + 48269.

Almost surely, 2^165144912 is an apocalyptic number.

165144912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165144912 is an abundant number, since it is smaller than the sum of its proper divisors (273014544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165144912 is a wasteful number, since it uses less digits than its factorization.

165144912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93035 (or 93029 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 165144912 is about 12850.8720326677. The cubic root of 165144912 is about 548.6411768024.

The spelling of 165144912 in words is "one hundred sixty-five million, one hundred forty-four thousand, nine hundred twelve".