1336681539 has 6 divisors (see below), whose sum is σ = 1930762236. Its totient is φ = 891121020.

The previous prime is 1336681481. The next prime is 1336681579. The reversal of 1336681539 is 9351866331.

1336681539 is a `hidden beast` number, since 1 + 3 + 36 + 6 + 81 + 539 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1336681539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1336681494 and 1336681503.

It is not an unprimeable number, because it can be changed into a prime (1336681579) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74260077 + ... + 74260094.

It is an arithmetic number, because the mean of its divisors is an integer number (321793706).

Almost surely, 2^1336681539 is an apocalyptic number.

1336681539 is a deficient number, since it is larger than the sum of its proper divisors (594080697).

1336681539 is a wasteful number, since it uses less digits than its factorization.

1336681539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148520177 (or 148520174 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 1336681539 is about 36560.6556150187. The cubic root of 1336681539 is about 1101.5629404954.

The spelling of 1336681539 in words is "one billion, three hundred thirty-six million, six hundred eighty-one thousand, five hundred thirty-nine".