13339257 has 4 divisors (see below), whose sum is σ = 17785680. Its totient is φ = 8892836.

The previous prime is 13339253. The next prime is 13339283. The reversal of 13339257 is 75293331.

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 a cyclic number.

It is not a de Polignac number, because 13339257 - 2² = 13339253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13339253) 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, 2223207 + ... + 2223212.

It is an arithmetic number, because the mean of its divisors is an integer number (4446420).

Almost surely, 2^13339257 is an apocalyptic number.

It is an amenable number.

13339257 is a deficient number, since it is larger than the sum of its proper divisors (4446423).

13339257 is an equidigital number, since it uses as much as digits as its factorization.

13339257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446422.

The product of its digits is 17010, while the sum is 33.

The square root of 13339257 is about 3652.2947580939. The cubic root of 13339257 is about 237.1613315173.

The spelling of 13339257 in words is "thirteen million, three hundred thirty-nine thousand, two hundred fifty-seven".