13279305 has 16 divisors (see below), whose sum is σ = 22881600. Its totient is φ = 6537408.

The previous prime is 13279297. The next prime is 13279351. The reversal of 13279305 is 50397231.

It is not a de Polignac number, because 13279305 - 2³ = 13279297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33855 + ... + 34244.

It is an arithmetic number, because the mean of its divisors is an integer number (1430100).

Almost surely, 2^13279305 is an apocalyptic number.

13279305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13279305 is a deficient number, since it is larger than the sum of its proper divisors (9602295).

13279305 is a wasteful number, since it uses less digits than its factorization.

13279305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68120.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 13279305 is about 3644.0780727092. The cubic root of 13279305 is about 236.8054983448.

The spelling of 13279305 in words is "thirteen million, two hundred seventy-nine thousand, three hundred five".