13521412 has 12 divisors (see below), whose sum is σ = 23907100. Its totient is φ = 6690816.

The previous prime is 13521397. The next prime is 13521419. The reversal of 13521412 is 21412531.

It can be written as a sum of positive squares in 2 ways, for example, as 2604996 + 10916416 = 1614^2 + 3304^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13521412.

It is not an unprimeable number, because it can be changed into a prime (13521419) 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, 17037 + ... + 17812.

Almost surely, 2^13521412 is an apocalyptic number.

It is an amenable number.

13521412 is a deficient number, since it is larger than the sum of its proper divisors (10385688).

13521412 is a wasteful number, since it uses less digits than its factorization.

13521412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34950 (or 34948 counting only the distinct ones).

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

The square root of 13521412 is about 3677.1472638446. The cubic root of 13521412 is about 238.2359780812.

Adding to 13521412 its reverse (21412531), we get a palindrome (34933943).

The spelling of 13521412 in words is "thirteen million, five hundred twenty-one thousand, four hundred twelve".