13279249 has 2 divisors, whose sum is σ = 13279250. Its totient is φ = 13279248.

The previous prime is 13279243. The next prime is 13279267. The reversal of 13279249 is 94297231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11778624 + 1500625 = 3432^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 13279249 - 2³ = 13279241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13279241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6639624 + 6639625.

It is an arithmetic number, because the mean of its divisors is an integer number (6639625).

Almost surely, 2^13279249 is an apocalyptic number.

It is an amenable number.

13279249 is a deficient number, since it is larger than the sum of its proper divisors (1).

13279249 is an equidigital number, since it uses as much as digits as its factorization.

13279249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 13279249 is about 3644.0703890018. The cubic root of 13279249 is about 236.8051654678.

The spelling of 13279249 in words is "thirteen million, two hundred seventy-nine thousand, two hundred forty-nine".