1140001999 has 2 divisors, whose sum is σ = 1140002000. Its totient is φ = 1140001998.

The previous prime is 1140001991. The next prime is 1140002009. The reversal of 1140001999 is 9991000411.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1140001999 - 2³ = 1140001991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140001991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570000999 + 570001000.

It is an arithmetic number, because the mean of its divisors is an integer number (570001000).

Almost surely, 2^1140001999 is an apocalyptic number.

1140001999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140001999 is an equidigital number, since it uses as much as digits as its factorization.

1140001999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 34.

The square root of 1140001999 is about 33763.9156348905. The cubic root of 1140001999 is about 1044.6445374194.

The spelling of 1140001999 in words is "one billion, one hundred forty million, one thousand, nine hundred ninety-nine".