13243273 has 2 divisors, whose sum is σ = 13243274. Its totient is φ = 13243272.

The previous prime is 13243271. The next prime is 13243297. The reversal of 13243273 is 37234231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12411529 + 831744 = 3523^2 + 912^2 .

It is a cyclic number.

It is not a de Polignac number, because 13243273 - 2¹ = 13243271 is a prime.

Together with 13243271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13243271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6621636 + 6621637.

It is an arithmetic number, because the mean of its divisors is an integer number (6621637).

Almost surely, 2^13243273 is an apocalyptic number.

It is an amenable number.

13243273 is a deficient number, since it is larger than the sum of its proper divisors (1).

13243273 is an equidigital number, since it uses as much as digits as its factorization.

13243273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 25.

The square root of 13243273 is about 3639.1308028154. The cubic root of 13243273 is about 236.5911220456.

The spelling of 13243273 in words is "thirteen million, two hundred forty-three thousand, two hundred seventy-three".