1439137313 has 2 divisors, whose sum is σ = 1439137314. Its totient is φ = 1439137312.

The previous prime is 1439137303. The next prime is 1439137327. The reversal of 1439137313 is 3137319341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 738317584 + 700819729 = 27172^2 + 26473^2 .

It is a cyclic number.

It is not a de Polignac number, because 1439137313 - 2¹² = 1439133217 is a prime.

It is a super-2 number, since 2×1439137313² = 4142232411337719938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1439137303) 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, 719568656 + 719568657.

It is an arithmetic number, because the mean of its divisors is an integer number (719568657).

Almost surely, 2^1439137313 is an apocalyptic number.

It is an amenable number.

1439137313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1439137313 is an equidigital number, since it uses as much as digits as its factorization.

1439137313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 35.

The square root of 1439137313 is about 37935.9633197840. The cubic root of 1439137313 is about 1129.0176841795.

The spelling of 1439137313 in words is "one billion, four hundred thirty-nine million, one hundred thirty-seven thousand, three hundred thirteen".