252988161 has 8 divisors (see below), whose sum is σ = 338023680. Its totient is φ = 168305712.

The previous prime is 252988159. The next prime is 252988189. The reversal of 252988161 is 161889252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252988161 - 2¹ = 252988159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252988061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86590 + ... + 89463.

It is an arithmetic number, because the mean of its divisors is an integer number (42252960).

Almost surely, 2^252988161 is an apocalyptic number.

It is an amenable number.

252988161 is a deficient number, since it is larger than the sum of its proper divisors (85035519).

252988161 is a wasteful number, since it uses less digits than its factorization.

252988161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176535.

The product of its digits is 69120, while the sum is 42.

The square root of 252988161 is about 15905.6015604566. The cubic root of 252988161 is about 632.4604888169.

The spelling of 252988161 in words is "two hundred fifty-two million, nine hundred eighty-eight thousand, one hundred sixty-one".