13213849 has 16 divisors (see below), whose sum is σ = 14986944. Its totient is φ = 11545600.

The previous prime is 13213841. The next prime is 13213853. The reversal of 13213849 is 94831231.

It is not a de Polignac number, because 13213849 - 2³ = 13213841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13213849.

It is not an unprimeable number, because it can be changed into a prime (13213841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37257 + ... + 37609.

It is an arithmetic number, because the mean of its divisors is an integer number (936684).

Almost surely, 2^13213849 is an apocalyptic number.

It is an amenable number.

13213849 is a deficient number, since it is larger than the sum of its proper divisors (1773095).

13213849 is a wasteful number, since it uses less digits than its factorization.

13213849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488.

The product of its digits is 5184, while the sum is 31.

The square root of 13213849 is about 3635.0858311737. The cubic root of 13213849 is about 236.4157721599.

The spelling of 13213849 in words is "thirteen million, two hundred thirteen thousand, eight hundred forty-nine".