1391119859 has 2 divisors, whose sum is σ = 1391119860. Its totient is φ = 1391119858.

The previous prime is 1391119837. The next prime is 1391119867. The reversal of 1391119859 is 9589111931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1391119859 - 2²⁴ = 1374342643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1391119819) 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, 695559929 + 695559930.

It is an arithmetic number, because the mean of its divisors is an integer number (695559930).

Almost surely, 2^1391119859 is an apocalyptic number.

1391119859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1391119859 is an equidigital number, since it uses as much as digits as its factorization.

1391119859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 47.

The square root of 1391119859 is about 37297.7192198129. The cubic root of 1391119859 is about 1116.3186578523.

The spelling of 1391119859 in words is "one billion, three hundred ninety-one million, one hundred nineteen thousand, eight hundred fifty-nine".