252246013 has 2 divisors, whose sum is σ = 252246014. Its totient is φ = 252246012.

The previous prime is 252246011. The next prime is 252246023. The reversal of 252246013 is 310642252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230371684 + 21874329 = 15178^2 + 4677^2 .

It is a cyclic number.

It is not a de Polignac number, because 252246013 - 2¹ = 252246011 is a prime.

Together with 252246011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252246011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126123006 + 126123007.

It is an arithmetic number, because the mean of its divisors is an integer number (126123007).

Almost surely, 2^252246013 is an apocalyptic number.

It is an amenable number.

252246013 is a deficient number, since it is larger than the sum of its proper divisors (1).

252246013 is an equidigital number, since it uses as much as digits as its factorization.

252246013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 252246013 is about 15882.2546573212. The cubic root of 252246013 is about 631.8414361128.

Adding to 252246013 its reverse (310642252), we get a palindrome (562888265).

The spelling of 252246013 in words is "two hundred fifty-two million, two hundred forty-six thousand, thirteen".