13245406 has 4 divisors (see below), whose sum is σ = 19868112. Its totient is φ = 6622702.

The previous prime is 13245403. The next prime is 13245409. The reversal of 13245406 is 60454231.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13245403) and next prime (13245409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13245403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311350 + ... + 3311353.

It is an arithmetic number, because the mean of its divisors is an integer number (4967028).

Almost surely, 2^13245406 is an apocalyptic number.

13245406 is a deficient number, since it is larger than the sum of its proper divisors (6622706).

13245406 is an equidigital number, since it uses as much as digits as its factorization.

13245406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622705.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 13245406 is about 3639.4238555024. The cubic root of 13245406 is about 236.6038233814.

Adding to 13245406 its reverse (60454231), we get a palindrome (73699637).

The spelling of 13245406 in words is "thirteen million, two hundred forty-five thousand, four hundred six".