252747345 has 16 divisors (see below), whose sum is σ = 421978752. Its totient is φ = 128937600.

The previous prime is 252747323. The next prime is 252747361. The reversal of 252747345 is 543747252.

It is not a de Polignac number, because 252747345 - 2¹⁵ = 252714577 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 365956 + ... + 366645.

It is an arithmetic number, because the mean of its divisors is an integer number (26373672).

Almost surely, 2^252747345 is an apocalyptic number.

It is an amenable number.

252747345 is a deficient number, since it is larger than the sum of its proper divisors (169231407).

252747345 is a wasteful number, since it uses less digits than its factorization.

252747345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732632.

The product of its digits is 235200, while the sum is 39.

The square root of 252747345 is about 15898.0295948901. The cubic root of 252747345 is about 632.2597482549.

The spelling of 252747345 in words is "two hundred fifty-two million, seven hundred forty-seven thousand, three hundred forty-five".