13420481 has 2 divisors, whose sum is σ = 13420482. Its totient is φ = 13420480.

The previous prime is 13420469. The next prime is 13420483. The reversal of 13420481 is 18402431.

13420481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11122225 + 2298256 = 3335^2 + 1516^2 .

It is a cyclic number.

It is not a de Polignac number, because 13420481 - 2¹⁰ = 13419457 is a prime.

It is a super-2 number, since 2×13420481² = 360218620542722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 13420483, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13420483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710240 + 6710241.

It is an arithmetic number, because the mean of its divisors is an integer number (6710241).

Almost surely, 2^13420481 is an apocalyptic number.

It is an amenable number.

13420481 is a deficient number, since it is larger than the sum of its proper divisors (1).

13420481 is an equidigital number, since it uses as much as digits as its factorization.

13420481 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 13420481 is about 3663.3974668332. The cubic root of 13420481 is about 237.6417237224.

The spelling of 13420481 in words is "thirteen million, four hundred twenty thousand, four hundred eighty-one".