1139946659 has 2 divisors, whose sum is σ = 1139946660. Its totient is φ = 1139946658.

The previous prime is 1139946593. The next prime is 1139946697. The reversal of 1139946659 is 9566499311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1139946659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1139946659.

It is not a weakly prime, because it can be changed into another prime (1139946559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569973329 + 569973330.

It is an arithmetic number, because the mean of its divisors is an integer number (569973330).

Almost surely, 2^1139946659 is an apocalyptic number.

1139946659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139946659 is an equidigital number, since it uses as much as digits as its factorization.

1139946659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 53.

The square root of 1139946659 is about 33763.0961109908. The cubic root of 1139946659 is about 1044.6276334829.

The spelling of 1139946659 in words is "one billion, one hundred thirty-nine million, nine hundred forty-six thousand, six hundred fifty-nine".