13741681 has 4 divisors (see below), whose sum is σ = 14001012. Its totient is φ = 13482352.

The previous prime is 13741667. The next prime is 13741687. The reversal of 13741681 is 18614731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12496225 + 1245456 = 3535^2 + 1116^2 .

It is not a de Polignac number, because 13741681 - 2¹⁷ = 13610609 is a prime.

It is a super-2 number, since 2×13741681² = 377667593411522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13741687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129586 + ... + 129691.

It is an arithmetic number, because the mean of its divisors is an integer number (3500253).

Almost surely, 2^13741681 is an apocalyptic number.

It is an amenable number.

13741681 is a deficient number, since it is larger than the sum of its proper divisors (259331).

13741681 is an equidigital number, since it uses as much as digits as its factorization.

13741681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259330.

The product of its digits is 4032, while the sum is 31.

The square root of 13741681 is about 3706.9773400980. The cubic root of 13741681 is about 239.5226681706.

The spelling of 13741681 in words is "thirteen million, seven hundred forty-one thousand, six hundred eighty-one".