13445339 has 4 divisors (see below), whose sum is σ = 13505856. Its totient is φ = 13384824.

The previous prime is 13445321. The next prime is 13445347. The reversal of 13445339 is 93354431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93354431 = 227 ⋅411253.

It is a cyclic number.

It is not a de Polignac number, because 13445339 - 2²⁰ = 12396763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13445309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29924 + ... + 30369.

It is an arithmetic number, because the mean of its divisors is an integer number (3376464).

Almost surely, 2^13445339 is an apocalyptic number.

13445339 is a deficient number, since it is larger than the sum of its proper divisors (60517).

13445339 is an equidigital number, since it uses as much as digits as its factorization.

13445339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60516.

The product of its digits is 19440, while the sum is 32.

The square root of 13445339 is about 3666.7886494861. The cubic root of 13445339 is about 237.7883566800.

The spelling of 13445339 in words is "thirteen million, four hundred forty-five thousand, three hundred thirty-nine".