13373309 has 4 divisors (see below), whose sum is σ = 13505820. Its totient is φ = 13240800.

The previous prime is 13373303. The next prime is 13373351. The reversal of 13373309 is 90337331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12581209 + 792100 = 3547^2 + 890^2 .

It is a cyclic number.

It is not a de Polignac number, because 13373309 - 2²⁰ = 12324733 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 (13373303) 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, 66104 + ... + 66305.

It is an arithmetic number, because the mean of its divisors is an integer number (3376455).

Almost surely, 2^13373309 is an apocalyptic number.

It is an amenable number.

13373309 is a deficient number, since it is larger than the sum of its proper divisors (132511).

13373309 is a wasteful number, since it uses less digits than its factorization.

13373309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132510.

The product of its (nonzero) digits is 5103, while the sum is 29.

The square root of 13373309 is about 3656.9535135137. The cubic root of 13373309 is about 237.3629658238.

The spelling of 13373309 in words is "thirteen million, three hundred seventy-three thousand, three hundred nine".