13726481 has 2 divisors, whose sum is σ = 13726482. Its totient is φ = 13726480.

The previous prime is 13726477. The next prime is 13726499. The reversal of 13726481 is 18462731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13690000 + 36481 = 3700^2 + 191^2 .

It is a cyclic number.

It is not a de Polignac number, because 13726481 - 2² = 13726477 is a prime.

It is a super-2 number, since 2×13726481² = 376832561286722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13726411) 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, 6863240 + 6863241.

It is an arithmetic number, because the mean of its divisors is an integer number (6863241).

Almost surely, 2^13726481 is an apocalyptic number.

It is an amenable number.

13726481 is a deficient number, since it is larger than the sum of its proper divisors (1).

13726481 is an equidigital number, since it uses as much as digits as its factorization.

13726481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 13726481 is about 3704.9265849676. The cubic root of 13726481 is about 239.4343216829.

The spelling of 13726481 in words is "thirteen million, seven hundred twenty-six thousand, four hundred eighty-one".