1301995613 has 2 divisors, whose sum is σ = 1301995614. Its totient is φ = 1301995612.

The previous prime is 1301995601. The next prime is 1301995633. The reversal of 1301995613 is 3165991031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 863595769 + 438399844 = 29387^2 + 20938^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301995613 - 2¹² = 1301991517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301995633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650997806 + 650997807.

It is an arithmetic number, because the mean of its divisors is an integer number (650997807).

Almost surely, 2^1301995613 is an apocalyptic number.

It is an amenable number.

1301995613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301995613 is an equidigital number, since it uses as much as digits as its factorization.

1301995613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 1301995613 is about 36083.1763152858. The cubic root of 1301995613 is about 1091.9510585234.

The spelling of 1301995613 in words is "one billion, three hundred one million, nine hundred ninety-five thousand, six hundred thirteen".