252146261 has 8 divisors (see below), whose sum is σ = 267162264. Its totient is φ = 237150720.

The previous prime is 252146243. The next prime is 252146273. The reversal of 252146261 is 162641252.

It can be written as a sum of positive squares in 4 ways, for example, as 41344900 + 210801361 = 6430^2 + 14519^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 252146261 - 2¹⁰ = 252145237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252145261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25571 + ... + 34031.

It is an arithmetic number, because the mean of its divisors is an integer number (33395283).

Almost surely, 2^252146261 is an apocalyptic number.

It is an amenable number.

252146261 is a deficient number, since it is larger than the sum of its proper divisors (15016003).

252146261 is a wasteful number, since it uses less digits than its factorization.

252146261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10231.

The product of its digits is 5760, while the sum is 29.

The square root of 252146261 is about 15879.1139866178. The cubic root of 252146261 is about 631.7581368023.

The spelling of 252146261 in words is "two hundred fifty-two million, one hundred forty-six thousand, two hundred sixty-one".