1140194779 has 2 divisors, whose sum is σ = 1140194780. Its totient is φ = 1140194778.

The previous prime is 1140194773. The next prime is 1140194791. The reversal of 1140194779 is 9774910411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1140194779 - 2⁷ = 1140194651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1140194773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570097389 + 570097390.

It is an arithmetic number, because the mean of its divisors is an integer number (570097390).

Almost surely, 2^1140194779 is an apocalyptic number.

1140194779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140194779 is an equidigital number, since it uses as much as digits as its factorization.

1140194779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 1140194779 is about 33766.7703371229. The cubic root of 1140194779 is about 1044.7034189603.

The spelling of 1140194779 in words is "one billion, one hundred forty million, one hundred ninety-four thousand, seven hundred seventy-nine".