252318233 has 8 divisors (see below), whose sum is σ = 281221920. Its totient is φ = 224976960.

The previous prime is 252318229. The next prime is 252318247. The reversal of 252318233 is 332813252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252318233 - 2² = 252318229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252318196 and 252318205.

It is not an unprimeable number, because it can be changed into a prime (252311233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390263 + ... + 390908.

It is an arithmetic number, because the mean of its divisors is an integer number (35152740).

Almost surely, 2^252318233 is an apocalyptic number.

It is an amenable number.

252318233 is a deficient number, since it is larger than the sum of its proper divisors (28903687).

252318233 is a wasteful number, since it uses less digits than its factorization.

252318233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781207.

The product of its digits is 8640, while the sum is 29.

The square root of 252318233 is about 15884.5281012689. The cubic root of 252318233 is about 631.9017307352.

The spelling of 252318233 in words is "two hundred fifty-two million, three hundred eighteen thousand, two hundred thirty-three".