165252432 has 20 divisors (see below), whose sum is σ = 426902240. Its totient is φ = 55084128.

The previous prime is 165252389. The next prime is 165252467. The reversal of 165252432 is 234252561.

It is a self number, because there is not a number n which added to its sum of digits gives 165252432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721332 + ... + 1721427.

It is an arithmetic number, because the mean of its divisors is an integer number (21345112).

Almost surely, 2^165252432 is an apocalyptic number.

165252432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165252432 is an abundant number, since it is smaller than the sum of its proper divisors (261649808).

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

165252432 is a wasteful number, since it uses less digits than its factorization.

165252432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442770 (or 3442764 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 165252432 is about 12855.0547256711. The cubic root of 165252432 is about 548.7602179143.

The spelling of 165252432 in words is "one hundred sixty-five million, two hundred fifty-two thousand, four hundred thirty-two".