252145445 has 16 divisors (see below), whose sum is σ = 321304320. Its totient is φ = 189298944.

The previous prime is 252145423. The next prime is 252145463. The reversal of 252145445 is 544541252.

It is not a de Polignac number, because 252145445 - 2⁶ = 252145381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26384 + ... + 34646.

It is an arithmetic number, because the mean of its divisors is an integer number (20081520).

Almost surely, 2^252145445 is an apocalyptic number.

It is an amenable number.

252145445 is a deficient number, since it is larger than the sum of its proper divisors (69158875).

252145445 is a wasteful number, since it uses less digits than its factorization.

252145445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8644.

The product of its digits is 32000, while the sum is 32.

The square root of 252145445 is about 15879.0882924682. The cubic root of 252145445 is about 631.7574552994.

Adding to 252145445 its reverse (544541252), we get a palindrome (796686697).

The spelling of 252145445 in words is "two hundred fifty-two million, one hundred forty-five thousand, four hundred forty-five".