13139323 has 4 divisors (see below), whose sum is σ = 13147200. Its totient is φ = 13131448.

The previous prime is 13139299. The next prime is 13139341. The reversal of 13139323 is 32393131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32393131 = 23 ⋅1408397.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13139323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13139023) 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, 340 + ... + 5137.

It is an arithmetic number, because the mean of its divisors is an integer number (3286800).

Almost surely, 2^13139323 is an apocalyptic number.

13139323 is a deficient number, since it is larger than the sum of its proper divisors (7877).

13139323 is an equidigital number, since it uses as much as digits as its factorization.

13139323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7876.

The product of its digits is 1458, while the sum is 25.

The square root of 13139323 is about 3624.8204093444. The cubic root of 13139323 is about 235.9704729410.

The spelling of 13139323 in words is "thirteen million, one hundred thirty-nine thousand, three hundred twenty-three".