13668741 has 6 divisors (see below), whose sum is σ = 19743750. Its totient is φ = 9112488.

The previous prime is 13668727. The next prime is 13668749. The reversal of 13668741 is 14786631.

It can be written as a sum of positive squares in only one way, i.e., 11902500 + 1766241 = 3450^2 + 1329^2 .

It is not a de Polignac number, because 13668741 - 2¹⁴ = 13652357 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13668696 and 13668705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13668749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 759366 + ... + 759383.

It is an arithmetic number, because the mean of its divisors is an integer number (3290625).

Almost surely, 2^13668741 is an apocalyptic number.

It is an amenable number.

13668741 is a deficient number, since it is larger than the sum of its proper divisors (6075009).

13668741 is a wasteful number, since it uses less digits than its factorization.

13668741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518755 (or 1518752 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 13668741 is about 3697.1260459984. The cubic root of 13668741 is about 239.0981255891.

The spelling of 13668741 in words is "thirteen million, six hundred sixty-eight thousand, seven hundred forty-one".