1249596013 has 2 divisors, whose sum is σ = 1249596014. Its totient is φ = 1249596012.

The previous prime is 1249595951. The next prime is 1249596017. The reversal of 1249596013 is 3106959421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1183222404 + 66373609 = 34398^2 + 8147^2 .

It is a cyclic number.

It is not a de Polignac number, because 1249596013 - 2¹³ = 1249587821 is a prime.

It is a super-2 number, since 2×1249596013² = 3122980391410992338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1249596017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624798006 + 624798007.

It is an arithmetic number, because the mean of its divisors is an integer number (624798007).

Almost surely, 2^1249596013 is an apocalyptic number.

It is an amenable number.

1249596013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249596013 is an equidigital number, since it uses as much as digits as its factorization.

1249596013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 1249596013 is about 35349.6253586937. The cubic root of 1249596013 is about 1077.1012840309.

The spelling of 1249596013 in words is "one billion, two hundred forty-nine million, five hundred ninety-six thousand, thirteen".