165254652 has 36 divisors (see below), whose sum is σ = 421640856. Its totient is φ = 54568800.

The previous prime is 165254623. The next prime is 165254657. The reversal of 165254652 is 256452561.

165254652 is a `hidden beast` number, since 1 + 65 + 2 + 546 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×165254652² = 54618200015282208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165254657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17599 + ... + 25302.

It is an arithmetic number, because the mean of its divisors is an integer number (11712246).

Almost surely, 2^165254652 is an apocalyptic number.

165254652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165254652 is an abundant number, since it is smaller than the sum of its proper divisors (256386204).

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

165254652 is a wasteful number, since it uses less digits than its factorization.

165254652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43018 (or 43013 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 165254652 is about 12855.1410727382. The cubic root of 165254652 is about 548.7626752503.

The spelling of 165254652 in words is "one hundred sixty-five million, two hundred fifty-four thousand, six hundred fifty-two".