252145 has 8 divisors (see below), whose sum is σ = 305280. Its totient is φ = 199920.

The previous prime is 252143. The next prime is 252151. The reversal of 252145 is 541252.

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

It is not a de Polignac number, because 252145 - 2¹ = 252143 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252143) 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, 936 + ... + 1174.

It is an arithmetic number, because the mean of its divisors is an integer number (38160).

2²⁵²¹⁴⁵ is an apocalyptic number.

It is an amenable number.

252145 is a deficient number, since it is larger than the sum of its proper divisors (53135).

252145 is a wasteful number, since it uses less digits than its factorization.

252145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455.

The product of its digits is 400, while the sum is 19.

The square root of 252145 is about 502.1404186082. The cubic root of 252145 is about 63.1757083646.

Adding to 252145 its reverse (541252), we get a palindrome (793397).

The spelling of 252145 in words is "two hundred fifty-two thousand, one hundred forty-five".