13309975 has 24 divisors (see below), whose sum is σ = 19859840. Its totient is φ = 8644320.

The previous prime is 13309957. The next prime is 13309991. The reversal of 13309975 is 57990331.

13309975 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13309975 - 2¹¹ = 13307927 is a prime.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 1324 + ... + 5326.

Almost surely, 2^13309975 is an apocalyptic number.

13309975 is a deficient number, since it is larger than the sum of its proper divisors (6549865).

13309975 is a wasteful number, since it uses less digits than its factorization.

13309975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039 (or 4034 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 13309975 is about 3648.2838431241. The cubic root of 13309975 is about 236.9876675264.

The spelling of 13309975 in words is "thirteen million, three hundred nine thousand, nine hundred seventy-five".