13449659 has 4 divisors (see below), whose sum is σ = 13468320. Its totient is φ = 13431000.

The previous prime is 13449617. The next prime is 13449677. The reversal of 13449659 is 95694431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13449659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13449259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8204 + ... + 9705.

It is an arithmetic number, because the mean of its divisors is an integer number (3367080).

Almost surely, 2^13449659 is an apocalyptic number.

13449659 is a deficient number, since it is larger than the sum of its proper divisors (18661).

13449659 is an equidigital number, since it uses as much as digits as its factorization.

13449659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18660.

The product of its digits is 116640, while the sum is 41.

The square root of 13449659 is about 3667.3776734882. The cubic root of 13449659 is about 237.8138211601.

The spelling of 13449659 in words is "thirteen million, four hundred forty-nine thousand, six hundred fifty-nine".