161252204 has 12 divisors (see below), whose sum is σ = 291294528. Its totient is φ = 78025200.

The previous prime is 161252197. The next prime is 161252207. The reversal of 161252204 is 402252161.

It is a happy number.

161252204 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 161252204.

It is not an unprimeable number, because it can be changed into a prime (161252207) by changing a digit.

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, 650087 + ... + 650334.

It is an arithmetic number, because the mean of its divisors is an integer number (24274544).

Almost surely, 2^161252204 is an apocalyptic number.

It is an amenable number.

161252204 is a deficient number, since it is larger than the sum of its proper divisors (130042324).

161252204 is a wasteful number, since it uses less digits than its factorization.

161252204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300456 (or 1300454 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 161252204 is about 12698.5118813190. The cubic root of 161252204 is about 544.2960965563.

The spelling of 161252204 in words is "one hundred sixty-one million, two hundred fifty-two thousand, two hundred four".