252243111 has 16 divisors (see below), whose sum is σ = 345316608. Its totient is φ = 163684800.

The previous prime is 252243091. The next prime is 252243133. The reversal of 252243111 is 111342252.

It is a de Polignac number, because none of the positive numbers 2^k-252243111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252243151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57796 + ... + 62006.

It is an arithmetic number, because the mean of its divisors is an integer number (21582288).

Almost surely, 2^252243111 is an apocalyptic number.

252243111 is a deficient number, since it is larger than the sum of its proper divisors (93073497).

252243111 is a wasteful number, since it uses less digits than its factorization.

252243111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4742.

The product of its digits is 480, while the sum is 21.

The square root of 252243111 is about 15882.1632972338. The cubic root of 252243111 is about 631.8390130671.

Adding to 252243111 its reverse (111342252), we get a palindrome (363585363).

The spelling of 252243111 in words is "two hundred fifty-two million, two hundred forty-three thousand, one hundred eleven".