1299161713 has 4 divisors (see below), whose sum is σ = 1320459508. Its totient is φ = 1277863920.

The previous prime is 1299161681. The next prime is 1299161719. The reversal of 1299161713 is 3171619921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3171619921 = 16693 ⋅189997.

It can be written as a sum of positive squares in 2 ways, for example, as 174028864 + 1125132849 = 13192^2 + 33543^2 .

It is a cyclic number.

It is not a de Polignac number, because 1299161713 - 2⁵ = 1299161681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1299161719) 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 in 3 ways as a sum of consecutive naturals, for example, 10648806 + ... + 10648927.

It is an arithmetic number, because the mean of its divisors is an integer number (330114877).

Almost surely, 2^1299161713 is an apocalyptic number.

It is an amenable number.

1299161713 is a deficient number, since it is larger than the sum of its proper divisors (21297795).

1299161713 is an equidigital number, since it uses as much as digits as its factorization.

1299161713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21297794.

The product of its digits is 20412, while the sum is 40.

The square root of 1299161713 is about 36043.8859309037. The cubic root of 1299161713 is about 1091.1582427560.

The spelling of 1299161713 in words is "one billion, two hundred ninety-nine million, one hundred sixty-one thousand, seven hundred thirteen".