13309045 has 8 divisors (see below), whose sum is σ = 16910424. Its totient is φ = 10020864.

The previous prime is 13309031. The next prime is 13309061. The reversal of 13309045 is 54090331.

13309045 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 1205604 + 12103441 = 1098^2 + 3479^2 .

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 13309045 - 2⁷ = 13308917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78204 + ... + 78373.

It is an arithmetic number, because the mean of its divisors is an integer number (2113803).

Almost surely, 2^13309045 is an apocalyptic number.

It is an amenable number.

13309045 is a deficient number, since it is larger than the sum of its proper divisors (3601379).

13309045 is a wasteful number, since it uses less digits than its factorization.

13309045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156599.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 13309045 is about 3648.1563837094. The cubic root of 13309045 is about 236.9821477648.

Adding to 13309045 its reverse (54090331), we get a palindrome (67399376).

The spelling of 13309045 in words is "thirteen million, three hundred nine thousand, forty-five".