13680199 has 16 divisors (see below), whose sum is σ = 15412320. Its totient is φ = 12055680.

The previous prime is 13680187. The next prime is 13680203. The reversal of 13680199 is 99108631.

It is not a de Polignac number, because 13680199 - 2⁵ = 13680167 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 (13680109) 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 15 ways as a sum of consecutive naturals, for example, 49249 + ... + 49525.

It is an arithmetic number, because the mean of its divisors is an integer number (963270).

Almost surely, 2^13680199 is an apocalyptic number.

13680199 is a deficient number, since it is larger than the sum of its proper divisors (1732121).

13680199 is a wasteful number, since it uses less digits than its factorization.

13680199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 13680199 is about 3698.6753034026. The cubic root of 13680199 is about 239.1649159683.

It can be divided in two parts, 136801 and 99, that added together give a square (136900 = 370²).

The spelling of 13680199 in words is "thirteen million, six hundred eighty thousand, one hundred ninety-nine".