13681654 has 16 divisors (see below), whose sum is σ = 24000768. Its totient is φ = 5726952.

The previous prime is 13681643. The next prime is 13681663. The reversal of 13681654 is 45618631.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10762 + ... + 11965.

It is an arithmetic number, because the mean of its divisors is an integer number (1500048).

Almost surely, 2^13681654 is an apocalyptic number.

13681654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13681654 is a deficient number, since it is larger than the sum of its proper divisors (10319114).

13681654 is a wasteful number, since it uses less digits than its factorization.

13681654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22779.

The product of its digits is 17280, while the sum is 34.

The square root of 13681654 is about 3698.8719902154. The cubic root of 13681654 is about 239.1733947098.

The spelling of 13681654 in words is "thirteen million, six hundred eighty-one thousand, six hundred fifty-four".