13445425 has 12 divisors (see below), whose sum is σ = 19054336. Its totient is φ = 9219600.

The previous prime is 13445389. The next prime is 13445429. The reversal of 13445425 is 52454431.

It is not a de Polignac number, because 13445425 - 2⁷ = 13445297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13445393 and 13445402.

It is not an unprimeable number, because it can be changed into a prime (13445429) 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 11 ways as a sum of consecutive naturals, for example, 38241 + ... + 38590.

Almost surely, 2^13445425 is an apocalyptic number.

It is an amenable number.

13445425 is a deficient number, since it is larger than the sum of its proper divisors (5608911).

13445425 is an equidigital number, since it uses as much as digits as its factorization.

13445425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76848 (or 76843 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 13445425 is about 3666.8003763499. The cubic root of 13445425 is about 237.7888636650.

Adding to 13445425 its reverse (52454431), we get a palindrome (65899856).

The spelling of 13445425 in words is "thirteen million, four hundred forty-five thousand, four hundred twenty-five".