1336630861 has 2 divisors, whose sum is σ = 1336630862. Its totient is φ = 1336630860.

The previous prime is 1336630853. The next prime is 1336630891. The reversal of 1336630861 is 1680366331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1109556100 + 227074761 = 33310^2 + 15069^2 .

It is a cyclic number.

It is not a de Polignac number, because 1336630861 - 2³ = 1336630853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1336630861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1336630891) 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, 668315430 + 668315431.

It is an arithmetic number, because the mean of its divisors is an integer number (668315431).

Almost surely, 2^1336630861 is an apocalyptic number.

It is an amenable number.

1336630861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1336630861 is an equidigital number, since it uses as much as digits as its factorization.

1336630861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1336630861 is about 36559.9625410093. The cubic root of 1336630861 is about 1101.5490190263.

The spelling of 1336630861 in words is "one billion, three hundred thirty-six million, six hundred thirty thousand, eight hundred sixty-one".