252381317 has 2 divisors, whose sum is σ = 252381318. Its totient is φ = 252381316.

The previous prime is 252381307. The next prime is 252381341. The reversal of 252381317 is 713183252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239197156 + 13184161 = 15466^2 + 3631^2 .

It is a cyclic number.

It is not a de Polignac number, because 252381317 - 2¹⁴ = 252364933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252381307) 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 as a sum of consecutive naturals, namely, 126190658 + 126190659.

It is an arithmetic number, because the mean of its divisors is an integer number (126190659).

Almost surely, 2^252381317 is an apocalyptic number.

It is an amenable number.

252381317 is a deficient number, since it is larger than the sum of its proper divisors (1).

252381317 is an equidigital number, since it uses as much as digits as its factorization.

252381317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 252381317 is about 15886.5136829954. The cubic root of 252381317 is about 631.9543885325.

The spelling of 252381317 in words is "two hundred fifty-two million, three hundred eighty-one thousand, three hundred seventeen".