13681741 has 4 divisors (see below), whose sum is σ = 14015484. Its totient is φ = 13348000.

The previous prime is 13681739. The next prime is 13681777. The reversal of 13681741 is 14718631.

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 6812100 + 6869641 = 2610^2 + 2621^2 .

It is a cyclic number.

It is not a de Polignac number, because 13681741 - 2¹ = 13681739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13681721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166810 + ... + 166891.

It is an arithmetic number, because the mean of its divisors is an integer number (3503871).

Almost surely, 2^13681741 is an apocalyptic number.

It is an amenable number.

13681741 is a deficient number, since it is larger than the sum of its proper divisors (333743).

13681741 is an equidigital number, since it uses as much as digits as its factorization.

13681741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333742.

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

The square root of 13681741 is about 3698.8837505388. The cubic root of 13681741 is about 239.1739016671.

The spelling of 13681741 in words is "thirteen million, six hundred eighty-one thousand, seven hundred forty-one".