252242231 has 2 divisors, whose sum is σ = 252242232. Its totient is φ = 252242230.

The previous prime is 252242201. The next prime is 252242267. The reversal of 252242231 is 132242252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252242231 - 2⁶ = 252242167 is a prime.

It is a super-2 number, since 2×252242231² = 127252286199714722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252242197 and 252242206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252242201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126121115 + 126121116.

It is an arithmetic number, because the mean of its divisors is an integer number (126121116).

Almost surely, 2^252242231 is an apocalyptic number.

252242231 is a deficient number, since it is larger than the sum of its proper divisors (1).

252242231 is an equidigital number, since it uses as much as digits as its factorization.

252242231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 23.

The square root of 252242231 is about 15882.1355931751. The cubic root of 252242231 is about 631.8382783011.

Adding to 252242231 its reverse (132242252), we get a palindrome (384484483).

The spelling of 252242231 in words is "two hundred fifty-two million, two hundred forty-two thousand, two hundred thirty-one".