13740481 has 2 divisors, whose sum is σ = 13740482. Its totient is φ = 13740480.

The previous prime is 13740473. The next prime is 13740487. The reversal of 13740481 is 18404731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13727025 + 13456 = 3705^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 13740481 - 2³ = 13740473 is a prime.

It is a super-2 number, since 2×13740481² = 377601636222722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13740487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6870240 + 6870241.

It is an arithmetic number, because the mean of its divisors is an integer number (6870241).

Almost surely, 2^13740481 is an apocalyptic number.

It is an amenable number.

13740481 is a deficient number, since it is larger than the sum of its proper divisors (1).

13740481 is an equidigital number, since it uses as much as digits as its factorization.

13740481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 13740481 is about 3706.8154796267. The cubic root of 13740481 is about 239.5156958172.

The spelling of 13740481 in words is "thirteen million, seven hundred forty thousand, four hundred eighty-one".