13003279 has 4 divisors (see below), whose sum is σ = 13018984. Its totient is φ = 12987576.

The previous prime is 13003259. The next prime is 13003301. The reversal of 13003279 is 97230031.

13003279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97230031 = 4871 ⋅19961.

It is a cyclic number.

It is not a de Polignac number, because 13003279 - 2⁵ = 13003247 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 (13003219) 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, 6537 + ... + 8290.

It is an arithmetic number, because the mean of its divisors is an integer number (3254746).

Almost surely, 2^13003279 is an apocalyptic number.

13003279 is a deficient number, since it is larger than the sum of its proper divisors (15705).

13003279 is an equidigital number, since it uses as much as digits as its factorization.

13003279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15704.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 13003279 is about 3606.0059622802. The cubic root of 13003279 is about 235.1532364087.

The spelling of 13003279 in words is "thirteen million, three thousand, two hundred seventy-nine".