1299668995 has 8 divisors (see below), whose sum is σ = 1570987584. Its totient is φ = 1032145344.

The previous prime is 1299668969. The next prime is 1299669001. The reversal of 1299668995 is 5998669921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1299668995 - 2¹¹ = 1299666947 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 947979 + ... + 949348.

It is an arithmetic number, because the mean of its divisors is an integer number (196373448).

Almost surely, 2^1299668995 is an apocalyptic number.

1299668995 is a deficient number, since it is larger than the sum of its proper divisors (271318589).

1299668995 is a wasteful number, since it uses less digits than its factorization.

1299668995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897469.

The product of its digits is 18895680, while the sum is 64.

The square root of 1299668995 is about 36050.9222489522. The cubic root of 1299668995 is about 1091.3002453261.

The spelling of 1299668995 in words is "one billion, two hundred ninety-nine million, six hundred sixty-eight thousand, nine hundred ninety-five".