252845 has 8 divisors (see below), whose sum is σ = 308760. Its totient is φ = 198720.

The previous prime is 252829. The next prime is 252869. The reversal of 252845 is 548252.

252845 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in 4 ways, for example, as 841 + 252004 = 29^2 + 502^2 .

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

It is not a de Polignac number, because 252845 - 2⁴ = 252829 is a prime.

It is a Curzon number.

It is a congruent 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, 110 + ... + 719.

It is an arithmetic number, because the mean of its divisors is an integer number (38595).

2²⁵²⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

252845 is a deficient number, since it is larger than the sum of its proper divisors (55915).

252845 is an equidigital number, since it uses as much as digits as its factorization.

252845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895.

The product of its digits is 3200, while the sum is 26.

The square root of 252845 is about 502.8369517050. The cubic root of 252845 is about 63.2341167344.

The spelling of 252845 in words is "two hundred fifty-two thousand, eight hundred forty-five".