245422613 has 2 divisors, whose sum is σ = 245422614. Its totient is φ = 245422612.

The previous prime is 245422607. The next prime is 245422637. The reversal of 245422613 is 316224542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243578449 + 1844164 = 15607^2 + 1358^2 .

It is a cyclic number.

It is not a de Polignac number, because 245422613 - 2¹⁸ = 245160469 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245422643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122711306 + 122711307.

It is an arithmetic number, because the mean of its divisors is an integer number (122711307).

Almost surely, 2^245422613 is an apocalyptic number.

It is an amenable number.

245422613 is a deficient number, since it is larger than the sum of its proper divisors (1).

245422613 is an equidigital number, since it uses as much as digits as its factorization.

245422613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 29.

The square root of 245422613 is about 15665.9699029457. The cubic root of 245422613 is about 626.0920538514.

The spelling of 245422613 in words is "two hundred forty-five million, four hundred twenty-two thousand, six hundred thirteen".