16418201 has 2 divisors, whose sum is σ = 16418202. Its totient is φ = 16418200.

The previous prime is 16418197. The next prime is 16418203. The reversal of 16418201 is 10281461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16192576 + 225625 = 4024^2 + 475^2 .

It is an emirp because it is prime and its reverse (10281461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16418201 - 2² = 16418197 is a prime.

It is a Sophie Germain prime.

Together with 16418203, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16418203) 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 as a sum of consecutive naturals, namely, 8209100 + 8209101.

It is an arithmetic number, because the mean of its divisors is an integer number (8209101).

Almost surely, 2^16418201 is an apocalyptic number.

It is an amenable number.

16418201 is a deficient number, since it is larger than the sum of its proper divisors (1).

16418201 is an equidigital number, since it uses as much as digits as its factorization.

16418201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 16418201 is about 4051.9379314101. The cubic root of 16418201 is about 254.1607730366.

Adding to 16418201 its reverse (10281461), we get a palindrome (26699662).

The spelling of 16418201 in words is "sixteen million, four hundred eighteen thousand, two hundred one".