1198291799 has 2 divisors, whose sum is σ = 1198291800. Its totient is φ = 1198291798.

The previous prime is 1198291777. The next prime is 1198291807. The reversal of 1198291799 is 9971928911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1198291799 - 2¹² = 1198287703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1198231799) 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 as a sum of consecutive naturals, namely, 599145899 + 599145900.

It is an arithmetic number, because the mean of its divisors is an integer number (599145900).

Almost surely, 2^1198291799 is an apocalyptic number.

1198291799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198291799 is an equidigital number, since it uses as much as digits as its factorization.

1198291799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 56.

The square root of 1198291799 is about 34616.3516130744. The cubic root of 1198291799 is about 1062.1540979488.

The spelling of 1198291799 in words is "one billion, one hundred ninety-eight million, two hundred ninety-one thousand, seven hundred ninety-nine".