13240481 has 2 divisors, whose sum is σ = 13240482. Its totient is φ = 13240480.

The previous prime is 13240463. The next prime is 13240489. The reversal of 13240481 is 18404231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13140625 + 99856 = 3625^2 + 316^2 .

It is an emirp because it is prime and its reverse (18404231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13240481 - 2¹⁴ = 13224097 is a prime.

It is a super-2 number, since 2×13240481² = 350620674222722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13240489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6620240 + 6620241.

It is an arithmetic number, because the mean of its divisors is an integer number (6620241).

Almost surely, 2^13240481 is an apocalyptic number.

It is an amenable number.

13240481 is a deficient number, since it is larger than the sum of its proper divisors (1).

13240481 is an equidigital number, since it uses as much as digits as its factorization.

13240481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 13240481 is about 3638.7471745094. The cubic root of 13240481 is about 236.5744945135.

The spelling of 13240481 in words is "thirteen million, two hundred forty thousand, four hundred eighty-one".