253247413 has 2 divisors, whose sum is σ = 253247414. Its totient is φ = 253247412.

The previous prime is 253247399. The next prime is 253247429. The reversal of 253247413 is 314742352.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238177489 + 15069924 = 15433^2 + 3882^2 .

It is a cyclic number.

It is not a de Polignac number, because 253247413 - 2⁹ = 253246901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253247443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126623706 + 126623707.

It is an arithmetic number, because the mean of its divisors is an integer number (126623707).

Almost surely, 2^253247413 is an apocalyptic number.

It is an amenable number.

253247413 is a deficient number, since it is larger than the sum of its proper divisors (1).

253247413 is an equidigital number, since it uses as much as digits as its factorization.

253247413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 31.

The square root of 253247413 is about 15913.7491811326. The cubic root of 253247413 is about 632.6764550096.

Adding to 253247413 its reverse (314742352), we get a palindrome (567989765).

The spelling of 253247413 in words is "two hundred fifty-three million, two hundred forty-seven thousand, four hundred thirteen".