13325645 has 12 divisors (see below), whose sum is σ = 16566420. Its totient is φ = 10289664.

The previous prime is 13325623. The next prime is 13325677. The reversal of 13325645 is 54652331.

It can be written as a sum of positive squares in 6 ways, for example, as 228484 + 13097161 = 478^2 + 3619^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13325645 is a prime.

It is a super-3 number, since 3×13325645³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2621 + ... + 5789.

It is an arithmetic number, because the mean of its divisors is an integer number (1380535).

Almost surely, 2^13325645 is an apocalyptic number.

It is an amenable number.

13325645 is a deficient number, since it is larger than the sum of its proper divisors (3240775).

13325645 is an equidigital number, since it uses as much as digits as its factorization.

13325645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232 (or 3203 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 13325645 is about 3650.4307964951. The cubic root of 13325645 is about 237.0806339005.

Adding to 13325645 its reverse (54652331), we get a palindrome (67977976).

The spelling of 13325645 in words is "thirteen million, three hundred twenty-five thousand, six hundred forty-five".