1136395979 has 2 divisors, whose sum is σ = 1136395980. Its totient is φ = 1136395978.

The previous prime is 1136395969. The next prime is 1136396021. The reversal of 1136395979 is 9795936311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1136395979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1136395979.

It is not a weakly prime, because it can be changed into another prime (1136395969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568197989 + 568197990.

It is an arithmetic number, because the mean of its divisors is an integer number (568197990).

Almost surely, 2^1136395979 is an apocalyptic number.

1136395979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1136395979 is an equidigital number, since it uses as much as digits as its factorization.

1136395979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1377810, while the sum is 53.

The square root of 1136395979 is about 33710.4728385705. The cubic root of 1136395979 is about 1043.5419112868.

The spelling of 1136395979 in words is "one billion, one hundred thirty-six million, three hundred ninety-five thousand, nine hundred seventy-nine".