165040252 has 48 divisors (see below), whose sum is σ = 321048000. Its totient is φ = 73751040.

The previous prime is 165040237. The next prime is 165040273. The reversal of 165040252 is 252040561.

165040252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424074 + ... + 424462.

It is an arithmetic number, because the mean of its divisors is an integer number (6688500).

Almost surely, 2^165040252 is an apocalyptic number.

It is an amenable number.

165040252 is a deficient number, since it is larger than the sum of its proper divisors (156007748).

165040252 is a wasteful number, since it uses less digits than its factorization.

165040252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 165040252 is about 12846.7992900956. The cubic root of 165040252 is about 548.5252525126.

The spelling of 165040252 in words is "one hundred sixty-five million, forty thousand, two hundred fifty-two".