1309496713 has 4 divisors (see below), whose sum is σ = 1496567680. Its totient is φ = 1122425748.

The previous prime is 1309496707. The next prime is 1309496717. The reversal of 1309496713 is 3176949031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1309496713 - 2²⁵ = 1275942281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1309496713.

It is not an unprimeable number, because it can be changed into a prime (1309496717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93535473 + ... + 93535486.

It is an arithmetic number, because the mean of its divisors is an integer number (374141920).

Almost surely, 2^1309496713 is an apocalyptic number.

It is an amenable number.

1309496713 is a deficient number, since it is larger than the sum of its proper divisors (187070967).

1309496713 is an equidigital number, since it uses as much as digits as its factorization.

1309496713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187070966.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 1309496713 is about 36186.9688285714. The cubic root of 1309496713 is about 1094.0440390704.

The spelling of 1309496713 in words is "one billion, three hundred nine million, four hundred ninety-six thousand, seven hundred thirteen".