13032309 has 8 divisors (see below), whose sum is σ = 18291040. Its totient is φ = 8230896.

The previous prime is 13032293. The next prime is 13032317. The reversal of 13032309 is 90323031.

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

It is not a de Polignac number, because 13032309 - 2⁴ = 13032293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13032379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114262 + ... + 114375.

It is an arithmetic number, because the mean of its divisors is an integer number (2286380).

Almost surely, 2^13032309 is an apocalyptic number.

13032309 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13032309 is a deficient number, since it is larger than the sum of its proper divisors (5258731).

13032309 is a wasteful number, since it uses less digits than its factorization.

13032309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228659.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 13032309 is about 3610.0289472524. The cubic root of 13032309 is about 235.3281006272.

The spelling of 13032309 in words is "thirteen million, thirty-two thousand, three hundred nine".