13660499 has 2 divisors, whose sum is σ = 13660500. Its totient is φ = 13660498.

The previous prime is 13660489. The next prime is 13660529. The reversal of 13660499 is 99406631.

It is a weak prime.

It is an emirp because it is prime and its reverse (99406631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13660499 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13660489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6830249 + 6830250.

It is an arithmetic number, because the mean of its divisors is an integer number (6830250).

Almost surely, 2^13660499 is an apocalyptic number.

13660499 is a deficient number, since it is larger than the sum of its proper divisors (1).

13660499 is an equidigital number, since it uses as much as digits as its factorization.

13660499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 13660499 is about 3696.0112283379. The cubic root of 13660499 is about 239.0500586659.

The spelling of 13660499 in words is "thirteen million, six hundred sixty thousand, four hundred ninety-nine".