13260257 has 2 divisors, whose sum is σ = 13260258. Its totient is φ = 13260256.

The previous prime is 13260253. The next prime is 13260283. The reversal of 13260257 is 75206231.

13260257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (13260283) can be obtained adding 13260257 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12988816 + 271441 = 3604^2 + 521^2 .

It is an emirp because it is prime and its reverse (75206231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13260257 - 2² = 13260253 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13260253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6630128 + 6630129.

It is an arithmetic number, because the mean of its divisors is an integer number (6630129).

Almost surely, 2^13260257 is an apocalyptic number.

It is an amenable number.

13260257 is a deficient number, since it is larger than the sum of its proper divisors (1).

13260257 is an equidigital number, since it uses as much as digits as its factorization.

13260257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 13260257 is about 3641.4635793867. The cubic root of 13260257 is about 236.6922185817.

Adding to 13260257 its reverse (75206231), we get a palindrome (88466488).

The spelling of 13260257 in words is "thirteen million, two hundred sixty thousand, two hundred fifty-seven".