1513155013 has 2 divisors, whose sum is σ = 1513155014. Its totient is φ = 1513155012.

The previous prime is 1513154977. The next prime is 1513155031. The reversal of 1513155013 is 3105513151.

It is a happy number.

Together with next prime (1513155031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1460997729 + 52157284 = 38223^2 + 7222^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1513155013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1513155913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756577506 + 756577507.

It is an arithmetic number, because the mean of its divisors is an integer number (756577507).

Almost surely, 2^1513155013 is an apocalyptic number.

It is an amenable number.

1513155013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1513155013 is an equidigital number, since it uses as much as digits as its factorization.

1513155013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 1513155013 is about 38899.2932198003. The cubic root of 1513155013 is about 1148.0508919415.

Adding to 1513155013 its reverse (3105513151), we get a palindrome (4618668164).

The spelling of 1513155013 in words is "one billion, five hundred thirteen million, one hundred fifty-five thousand, thirteen".