13720199 has 8 divisors (see below), whose sum is σ = 14147952. Its totient is φ = 13296960.

The previous prime is 13720169. The next prime is 13720211. The reversal of 13720199 is 99102731.

It is a happy number.

13720199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13720199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13720129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5657 + ... + 7709.

It is an arithmetic number, because the mean of its divisors is an integer number (1768494).

Almost surely, 2^13720199 is an apocalyptic number.

13720199 is a deficient number, since it is larger than the sum of its proper divisors (427753).

13720199 is a wasteful number, since it uses less digits than its factorization.

13720199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 13720199 is about 3704.0786978681. The cubic root of 13720199 is about 239.3977899618.

The spelling of 13720199 in words is "thirteen million, seven hundred twenty thousand, one hundred ninety-nine".