1245115013 has 2 divisors, whose sum is σ = 1245115014. Its totient is φ = 1245115012.

The previous prime is 1245114979. The next prime is 1245115063. The reversal of 1245115013 is 3105115421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1148328769 + 96786244 = 33887^2 + 9838^2 .

It is an emirp because it is prime and its reverse (3105115421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1245115013 - 2¹² = 1245110917 is a prime.

It is a super-2 number, since 2×1245115013² = 3100622791195980338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1245115013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245115063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622557506 + 622557507.

It is an arithmetic number, because the mean of its divisors is an integer number (622557507).

Almost surely, 2^1245115013 is an apocalyptic number.

It is an amenable number.

1245115013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245115013 is an equidigital number, since it uses as much as digits as its factorization.

1245115013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1245115013 is about 35286.1872834116. The cubic root of 1245115013 is about 1075.8122616792.

The spelling of 1245115013 in words is "one billion, two hundred forty-five million, one hundred fifteen thousand, thirteen".