14805681 has 12 divisors (see below), whose sum is σ = 21699216. Its totient is φ = 8972920.

The previous prime is 14805677. The next prime is 14805733. The reversal of 14805681 is 18650841.

It is not a de Polignac number, because 14805681 - 2² = 14805677 is a prime.

It is a super-2 number, since 2×14805681² = 438416379747522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (14805601) 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 11 ways as a sum of consecutive naturals, for example, 20031 + ... + 20756.

It is an arithmetic number, because the mean of its divisors is an integer number (1808268).

Almost surely, 2^14805681 is an apocalyptic number.

14805681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14805681 is a deficient number, since it is larger than the sum of its proper divisors (6893535).

14805681 is a wasteful number, since it uses less digits than its factorization.

14805681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40812 (or 40801 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 14805681 is about 3847.8150943100. The cubic root of 14805681 is about 245.5516156407.

The spelling of 14805681 in words is "fourteen million, eight hundred five thousand, six hundred eighty-one".