252844945 has 8 divisors (see below), whose sum is σ = 310470336. Its totient is φ = 197571696.

The previous prime is 252844937. The next prime is 252844979. The reversal of 252844945 is 549448252.

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 252844945 - 2³ = 252844937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 587797 + ... + 588226.

It is an arithmetic number, because the mean of its divisors is an integer number (38808792).

Almost surely, 2^252844945 is an apocalyptic number.

It is an amenable number.

252844945 is a deficient number, since it is larger than the sum of its proper divisors (57625391).

252844945 is a wasteful number, since it uses less digits than its factorization.

252844945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176071.

The product of its digits is 460800, while the sum is 43.

The square root of 252844945 is about 15901.0988613995. The cubic root of 252844945 is about 632.3411214936.

The spelling of 252844945 in words is "two hundred fifty-two million, eight hundred forty-four thousand, nine hundred forty-five".