12513408 has 32 divisors (see below), whose sum is σ = 33239760. Its totient is φ = 4171008.

The previous prime is 12513407. The next prime is 12513409. The reversal of 12513408 is 80431521.

It is an interprime number because it is at equal distance from previous prime (12513407) and next prime (12513409).

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12513401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15910 + ... + 16677.

Almost surely, 2^12513408 is an apocalyptic number.

It is an amenable number.

12513408 is an abundant number, since it is smaller than the sum of its proper divisors (20726352).

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

12513408 is an equidigital number, since it uses as much as digits as its factorization.

12513408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32604 (or 32592 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 12513408 is about 3537.4295752707. The cubic root of 12513408 is about 232.1623912601.

Adding to 12513408 its reverse (80431521), we get a palindrome (92944929).

It can be divided in two parts, 12513 and 408, that added together give a palindrome (12921).

The spelling of 12513408 in words is "twelve million, five hundred thirteen thousand, four hundred eight".