1394317513 has 2 divisors, whose sum is σ = 1394317514. Its totient is φ = 1394317512.

The previous prime is 1394317487. The next prime is 1394317517. The reversal of 1394317513 is 3157134931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 916151824 + 478165689 = 30268^2 + 21867^2 .

It is a cyclic number.

It is not a de Polignac number, because 1394317513 - 2²⁵ = 1360763081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1394317517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697158756 + 697158757.

It is an arithmetic number, because the mean of its divisors is an integer number (697158757).

Almost surely, 2^1394317513 is an apocalyptic number.

It is an amenable number.

1394317513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394317513 is an equidigital number, since it uses as much as digits as its factorization.

1394317513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 37.

The square root of 1394317513 is about 37340.5612303832. The cubic root of 1394317513 is about 1117.1733336100.

The spelling of 1394317513 in words is "one billion, three hundred ninety-four million, three hundred seventeen thousand, five hundred thirteen".