1312079199 has 16 divisors (see below), whose sum is σ = 1769294592. Its totient is φ = 864819648.

The previous prime is 1312079191. The next prime is 1312079203. The reversal of 1312079199 is 9919702131.

It is not a de Polignac number, because 1312079199 - 2³ = 1312079191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1312079199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312079191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207939 + ... + 214155.

It is an arithmetic number, because the mean of its divisors is an integer number (110580912).

Almost surely, 2^1312079199 is an apocalyptic number.

1312079199 is a deficient number, since it is larger than the sum of its proper divisors (457215393).

1312079199 is a wasteful number, since it uses less digits than its factorization.

1312079199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7006.

The product of its (nonzero) digits is 30618, while the sum is 42.

The square root of 1312079199 is about 36222.6337943557. The cubic root of 1312079199 is about 1094.7627625580.

The spelling of 1312079199 in words is "one billion, three hundred twelve million, seventy-nine thousand, one hundred ninety-nine".