1302540013 has 2 divisors, whose sum is σ = 1302540014. Its totient is φ = 1302540012.

The previous prime is 1302539977. The next prime is 1302540037. The reversal of 1302540013 is 3100452031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 703416484 + 599123529 = 26522^2 + 24477^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302540013 - 2²⁵ = 1268985581 is a prime.

It is a super-2 number, since 2×1302540013² = 3393220970932080338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1302540073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651270006 + 651270007.

It is an arithmetic number, because the mean of its divisors is an integer number (651270007).

Almost surely, 2^1302540013 is an apocalyptic number.

It is an amenable number.

1302540013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302540013 is an equidigital number, since it uses as much as digits as its factorization.

1302540013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1302540013 is about 36090.7192086830. The cubic root of 1302540013 is about 1092.1032288576.

Adding to 1302540013 its reverse (3100452031), we get a palindrome (4402992044).

The spelling of 1302540013 in words is "one billion, three hundred two million, five hundred forty thousand, thirteen".