13276289 has 4 divisors (see below), whose sum is σ = 14297556. Its totient is φ = 12255024.

The previous prime is 13276283. The next prime is 13276297. The reversal of 13276289 is 98267231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98267231 = 79 ⋅1243889.

It can be written as a sum of positive squares in 2 ways, for example, as 970225 + 12306064 = 985^2 + 3508^2 .

It is a cyclic number.

It is not a de Polignac number, because 13276289 - 2⁸ = 13276033 is a prime.

It is a super-2 number, since 2×13276289² = 352519699223042, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13276283) 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, 510614 + ... + 510639.

It is an arithmetic number, because the mean of its divisors is an integer number (3574389).

Almost surely, 2^13276289 is an apocalyptic number.

It is an amenable number.

13276289 is a deficient number, since it is larger than the sum of its proper divisors (1021267).

13276289 is a wasteful number, since it uses less digits than its factorization.

13276289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021266.

The product of its digits is 36288, while the sum is 38.

The square root of 13276289 is about 3643.6642271208. The cubic root of 13276289 is about 236.7875692072.

The spelling of 13276289 in words is "thirteen million, two hundred seventy-six thousand, two hundred eighty-nine".