1336681481 has 2 divisors, whose sum is σ = 1336681482. Its totient is φ = 1336681480.

The previous prime is 1336681469. The next prime is 1336681579. The reversal of 1336681481 is 1841866331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1057290256 + 279391225 = 32516^2 + 16715^2 .

It is a cyclic number.

It is not a de Polignac number, because 1336681481 - 2²⁶ = 1269572617 is a prime.

It is a super-2 number, since 2×1336681481² = 3573434763296706722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1336681781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 668340740 + 668340741.

It is an arithmetic number, because the mean of its divisors is an integer number (668340741).

Almost surely, 2^1336681481 is an apocalyptic number.

It is an amenable number.

1336681481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1336681481 is an equidigital number, since it uses as much as digits as its factorization.

1336681481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 41.

The square root of 1336681481 is about 36560.6548218163. The cubic root of 1336681481 is about 1101.5629245627.

The spelling of 1336681481 in words is "one billion, three hundred thirty-six million, six hundred eighty-one thousand, four hundred eighty-one".