13812201 has 30 divisors (see below), whose sum is σ = 22364430. Its totient is φ = 8491392.

The previous prime is 13812199. The next prime is 13812209. The reversal of 13812201 is 10221831.

13812201 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 129600 + 13682601 = 360^2 + 3699^2 .

It is not a de Polignac number, because 13812201 - 2¹ = 13812199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13812209) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 13185 + ... + 14193.

It is an arithmetic number, because the mean of its divisors is an integer number (745481).

Almost surely, 2^13812201 is an apocalyptic number.

It is an amenable number.

13812201 is a deficient number, since it is larger than the sum of its proper divisors (8552229).

13812201 is a wasteful number, since it uses less digits than its factorization.

13812201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047 (or 1025 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 13812201 is about 3716.4769607789. The cubic root of 13812201 is about 239.9316993144.

The spelling of 13812201 in words is "thirteen million, eight hundred twelve thousand, two hundred one".