13041309 has 4 divisors (see below), whose sum is σ = 17388416. Its totient is φ = 8694204.

The previous prime is 13041307. The next prime is 13041313. The reversal of 13041309 is 90314031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13041309 - 2¹ = 13041307 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13041307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2173549 + ... + 2173554.

It is an arithmetic number, because the mean of its divisors is an integer number (4347104).

Almost surely, 2^13041309 is an apocalyptic number.

It is an amenable number.

13041309 is a deficient number, since it is larger than the sum of its proper divisors (4347107).

13041309 is an equidigital number, since it uses as much as digits as its factorization.

13041309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347106.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13041309 is about 3611.2752595171. The cubic root of 13041309 is about 235.3822600128.

The spelling of 13041309 in words is "thirteen million, forty-one thousand, three hundred nine".