13848309 has 6 divisors (see below), whose sum is σ = 20003126. Its totient is φ = 9232200.

The previous prime is 13848299. The next prime is 13848313. The reversal of 13848309 is 90384831.

It can be written as a sum of positive squares in only one way, i.e., 12215025 + 1633284 = 3495^2 + 1278^2 .

It is not a de Polignac number, because 13848309 - 2⁴ = 13848293 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 (13848349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 769342 + ... + 769359.

Almost surely, 2^13848309 is an apocalyptic number.

It is an amenable number.

13848309 is a deficient number, since it is larger than the sum of its proper divisors (6154817).

13848309 is a wasteful number, since it uses less digits than its factorization.

13848309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538707 (or 1538704 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 13848309 is about 3721.3316165050. The cubic root of 13848309 is about 240.1405947053.

The spelling of 13848309 in words is "thirteen million, eight hundred forty-eight thousand, three hundred nine".