252143311 has 16 divisors (see below), whose sum is σ = 293485824. Its totient is φ = 212154624.

The previous prime is 252143257. The next prime is 252143321. The reversal of 252143311 is 113341252.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252143311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252143321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164796 + ... + 166318.

It is an arithmetic number, because the mean of its divisors is an integer number (18342864).

Almost surely, 2^252143311 is an apocalyptic number.

252143311 is a deficient number, since it is larger than the sum of its proper divisors (41342513).

252143311 is a wasteful number, since it uses less digits than its factorization.

252143311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950.

The product of its digits is 720, while the sum is 22.

The square root of 252143311 is about 15879.0210970324. The cubic root of 252143311 is about 631.7556730288.

Adding to 252143311 its reverse (113341252), we get a palindrome (365484563).

The spelling of 252143311 in words is "two hundred fifty-two million, one hundred forty-three thousand, three hundred eleven".