165253902 has 32 divisors (see below), whose sum is σ = 368945280. Its totient is φ = 48911520.

The previous prime is 165253883. The next prime is 165253909. The reversal of 165253902 is 209352561.

165253902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165253909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26277 + ... + 31952.

It is an arithmetic number, because the mean of its divisors is an integer number (11529540).

Almost surely, 2^165253902 is an apocalyptic number.

165253902 is an abundant number, since it is smaller than the sum of its proper divisors (203691378).

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

165253902 is a wasteful number, since it uses less digits than its factorization.

165253902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58288.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 165253902 is about 12855.1119014966. Note that the first 3 decimals coincide. The cubic root of 165253902 is about 548.7618450717.

The spelling of 165253902 in words is "one hundred sixty-five million, two hundred fifty-three thousand, nine hundred two".