13641682 has 4 divisors (see below), whose sum is σ = 20462526. Its totient is φ = 6820840.

The previous prime is 13641679. The next prime is 13641689. The reversal of 13641682 is 28614631.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 10361961 + 3279721 = 3219^2 + 1811^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13641689) 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, 3410419 + ... + 3410422.

Almost surely, 2^13641682 is an apocalyptic number.

13641682 is a deficient number, since it is larger than the sum of its proper divisors (6820844).

13641682 is an equidigital number, since it uses as much as digits as its factorization.

13641682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820843.

The product of its digits is 6912, while the sum is 31.

The square root of 13641682 is about 3693.4647690211. The cubic root of 13641682 is about 238.9402463786.

The spelling of 13641682 in words is "thirteen million, six hundred forty-one thousand, six hundred eighty-two".