13613212 has 12 divisors (see below), whose sum is σ = 23856336. Its totient is φ = 6797120.

The previous prime is 13613207. The next prime is 13613227. The reversal of 13613212 is 21231631.

It is a self number, because there is not a number n which added to its sum of digits gives 13613212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1593 + ... + 5455.

It is an arithmetic number, because the mean of its divisors is an integer number (1988028).

Almost surely, 2^13613212 is an apocalyptic number.

It is an amenable number.

13613212 is a deficient number, since it is larger than the sum of its proper divisors (10243124).

13613212 is a wasteful number, since it uses less digits than its factorization.

13613212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4748 (or 4746 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 13613212 is about 3689.6086513342. The cubic root of 13613212 is about 238.7739089567.

Adding to 13613212 its reverse (21231631), we get a palindrome (34844843).

The spelling of 13613212 in words is "thirteen million, six hundred thirteen thousand, two hundred twelve".