13207279 has 2 divisors, whose sum is σ = 13207280. Its totient is φ = 13207278.

The previous prime is 13207277. The next prime is 13207291. The reversal of 13207279 is 97270231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13207279 - 2¹ = 13207277 is a prime.

Together with 13207277, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13207279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13207273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6603639 + 6603640.

It is an arithmetic number, because the mean of its divisors is an integer number (6603640).

Almost surely, 2^13207279 is an apocalyptic number.

13207279 is a deficient number, since it is larger than the sum of its proper divisors (1).

13207279 is an equidigital number, since it uses as much as digits as its factorization.

13207279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 13207279 is about 3634.1820262612. The cubic root of 13207279 is about 236.3765832472.

The spelling of 13207279 in words is "thirteen million, two hundred seven thousand, two hundred seventy-nine".