252323191 has 2 divisors, whose sum is σ = 252323192. Its totient is φ = 252323190.

The previous prime is 252323189. The next prime is 252323209. The reversal of 252323191 is 191323252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252323191 - 2¹ = 252323189 is a prime.

Together with 252323189, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252323101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126161595 + 126161596.

It is an arithmetic number, because the mean of its divisors is an integer number (126161596).

Almost surely, 2^252323191 is an apocalyptic number.

252323191 is a deficient number, since it is larger than the sum of its proper divisors (1).

252323191 is an equidigital number, since it uses as much as digits as its factorization.

252323191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 252323191 is about 15884.6841643137. The cubic root of 252323191 is about 631.9058696200.

The spelling of 252323191 in words is "two hundred fifty-two million, three hundred twenty-three thousand, one hundred ninety-one".