13457261 has 2 divisors, whose sum is σ = 13457262. Its totient is φ = 13457260.

The previous prime is 13457243. The next prime is 13457273. The reversal of 13457261 is 16275431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13213225 + 244036 = 3635^2 + 494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13457261 is a prime.

It is a plaindrome in base 7.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13457201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6728630 + 6728631.

It is an arithmetic number, because the mean of its divisors is an integer number (6728631).

Almost surely, 2^13457261 is an apocalyptic number.

It is an amenable number.

13457261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13457261 is an equidigital number, since it uses as much as digits as its factorization.

13457261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 13457261 is about 3668.4139624639. The cubic root of 13457261 is about 237.8586183346.

The spelling of 13457261 in words is "thirteen million, four hundred fifty-seven thousand, two hundred sixty-one".