252012317 has 2 divisors, whose sum is σ = 252012318. Its totient is φ = 252012316.

The previous prime is 252012223. The next prime is 252012359. The reversal of 252012317 is 713210252.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182223001 + 69789316 = 13499^2 + 8354^2 .

It is a cyclic number.

It is not a de Polignac number, because 252012317 - 2²² = 247818013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252012292 and 252012301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252012367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126006158 + 126006159.

It is an arithmetic number, because the mean of its divisors is an integer number (126006159).

Almost surely, 2^252012317 is an apocalyptic number.

It is an amenable number.

252012317 is a deficient number, since it is larger than the sum of its proper divisors (1).

252012317 is an equidigital number, since it uses as much as digits as its factorization.

252012317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 252012317 is about 15874.8958106817. The cubic root of 252012317 is about 631.6462504182.

Adding to 252012317 its reverse (713210252), we get a palindrome (965222569).

The spelling of 252012317 in words is "two hundred fifty-two million, twelve thousand, three hundred seventeen".