245350013 has 2 divisors, whose sum is σ = 245350014. Its totient is φ = 245350012.

The previous prime is 245349989. The next prime is 245350033. The reversal of 245350013 is 310053542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227014489 + 18335524 = 15067^2 + 4282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245350013 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 (245350033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122675006 + 122675007.

It is an arithmetic number, because the mean of its divisors is an integer number (122675007).

Almost surely, 2^245350013 is an apocalyptic number.

It is an amenable number.

245350013 is a deficient number, since it is larger than the sum of its proper divisors (1).

245350013 is an equidigital number, since it uses as much as digits as its factorization.

245350013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 245350013 is about 15663.6526072305. The cubic root of 245350013 is about 626.0303116925.

The spelling of 245350013 in words is "two hundred forty-five million, three hundred fifty thousand, thirteen".