13307445 has 24 divisors (see below), whose sum is σ = 23279256. Its totient is φ = 7031808.

The previous prime is 13307431. The next prime is 13307449. The reversal of 13307445 is 54470331.

13307445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1238769 + 12068676 = 1113^2 + 3474^2 .

It is not a de Polignac number, because 13307445 - 2⁶ = 13307381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13307449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3777 + ... + 6393.

It is an arithmetic number, because the mean of its divisors is an integer number (969969).

Almost surely, 2^13307445 is an apocalyptic number.

13307445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13307445 is a deficient number, since it is larger than the sum of its proper divisors (9971811).

13307445 is a wasteful number, since it uses less digits than its factorization.

13307445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2738 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 13307445 is about 3647.9370882733. The cubic root of 13307445 is about 236.9726507991.

Adding to 13307445 its reverse (54470331), we get a palindrome (67777776).

The spelling of 13307445 in words is "thirteen million, three hundred seven thousand, four hundred forty-five".