13006945 has 8 divisors (see below), whose sum is σ = 17838144. Its totient is φ = 8919024.

The previous prime is 13006933. The next prime is 13006951. The reversal of 13006945 is 54960031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13006945 - 2⁵ = 13006913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 185779 + ... + 185848.

It is an arithmetic number, because the mean of its divisors is an integer number (2229768).

Almost surely, 2^13006945 is an apocalyptic number.

It is an amenable number.

13006945 is a deficient number, since it is larger than the sum of its proper divisors (4831199).

13006945 is an equidigital number, since it uses as much as digits as its factorization.

13006945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371639.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 13006945 is about 3606.5142450849. The cubic root of 13006945 is about 235.1753331625.

Adding to 13006945 its reverse (54960031), we get a palindrome (67966976).

The spelling of 13006945 in words is "thirteen million, six thousand, nine hundred forty-five".