1306413239 has 2 divisors, whose sum is σ = 1306413240. Its totient is φ = 1306413238.

The previous prime is 1306413233. The next prime is 1306413247. The reversal of 1306413239 is 9323146031.

It is a weak prime.

It is an emirp because it is prime and its reverse (9323146031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1306413239 - 2²⁰ = 1305364663 is a prime.

It is a super-2 number, since 2×1306413239² = 3413431102068942242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1306413233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653206619 + 653206620.

It is an arithmetic number, because the mean of its divisors is an integer number (653206620).

Almost surely, 2^1306413239 is an apocalyptic number.

1306413239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306413239 is an equidigital number, since it uses as much as digits as its factorization.

1306413239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 1306413239 is about 36144.3389620007. The cubic root of 1306413239 is about 1093.1846484326.

The spelling of 1306413239 in words is "one billion, three hundred six million, four hundred thirteen thousand, two hundred thirty-nine".