13281293 has 2 divisors, whose sum is σ = 13281294. Its totient is φ = 13281292.

The previous prime is 13281283. The next prime is 13281329. The reversal of 13281293 is 39218231.

Together with next prime (13281329) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13118884 + 162409 = 3622^2 + 403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13281293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13281283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6640646 + 6640647.

It is an arithmetic number, because the mean of its divisors is an integer number (6640647).

Almost surely, 2^13281293 is an apocalyptic number.

It is an amenable number.

13281293 is a deficient number, since it is larger than the sum of its proper divisors (1).

13281293 is an equidigital number, since it uses as much as digits as its factorization.

13281293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 13281293 is about 3644.3508338249. The cubic root of 13281293 is about 236.8173148729.

The spelling of 13281293 in words is "thirteen million, two hundred eighty-one thousand, two hundred ninety-three".