252143312 has 20 divisors (see below), whose sum is σ = 490849536. Its totient is φ = 125472480.

The previous prime is 252143257. The next prime is 252143321. The reversal of 252143312 is 213341252.

252143312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33968 + ... + 40719.

Almost surely, 2^252143312 is an apocalyptic number.

It is an amenable number.

252143312 is a deficient number, since it is larger than the sum of its proper divisors (238706224).

252143312 is a wasteful number, since it uses less digits than its factorization.

252143312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74906 (or 74900 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 252143312 is about 15879.0211285205. The cubic root of 252143312 is about 631.7556738640.

Adding to 252143312 its reverse (213341252), we get a palindrome (465484564).

The spelling of 252143312 in words is "two hundred fifty-two million, one hundred forty-three thousand, three hundred twelve".