13215412 has 24 divisors (see below), whose sum is σ = 27823040. Its totient is φ = 5365440.

The previous prime is 13215383. The next prime is 13215421. The reversal of 13215412 is 21451231.

13215412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13215412² = 349294228659488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 13215412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11889 + ... + 12952.

Almost surely, 2^13215412 is an apocalyptic number.

It is an amenable number.

13215412 is an abundant number, since it is smaller than the sum of its proper divisors (14607628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13215412 is a wasteful number, since it uses less digits than its factorization.

13215412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24871 (or 24869 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 13215412 is about 3635.3008128627. The cubic root of 13215412 is about 236.4250932715.

Adding to 13215412 its reverse (21451231), we get a palindrome (34666643).

The spelling of 13215412 in words is "thirteen million, two hundred fifteen thousand, four hundred twelve".