1199056799 has 4 divisors (see below), whose sum is σ = 1199140440. Its totient is φ = 1198973160.

The previous prime is 1199056787. The next prime is 1199056813. The reversal of 1199056799 is 9976509911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1199056799 - 2⁴ = 1199056783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1199056709) 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, 14264 + ... + 51005.

It is an arithmetic number, because the mean of its divisors is an integer number (299785110).

Almost surely, 2^1199056799 is an apocalyptic number.

1199056799 is a deficient number, since it is larger than the sum of its proper divisors (83641).

1199056799 is an equidigital number, since it uses as much as digits as its factorization.

1199056799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83640.

The product of its (nonzero) digits is 1377810, while the sum is 56.

The square root of 1199056799 is about 34627.3995414036. The cubic root of 1199056799 is about 1062.3800793651.

The spelling of 1199056799 in words is "one billion, one hundred ninety-nine million, fifty-six thousand, seven hundred ninety-nine".