201444013 has 2 divisors, whose sum is σ = 201444014. Its totient is φ = 201444012.

The previous prime is 201444007. The next prime is 201444017. The reversal of 201444013 is 310444102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126742564 + 74701449 = 11258^2 + 8643^2 .

It is a cyclic number.

It is not a de Polignac number, because 201444013 - 2⁵ = 201443981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201444017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100722006 + 100722007.

It is an arithmetic number, because the mean of its divisors is an integer number (100722007).

Almost surely, 2^201444013 is an apocalyptic number.

It is an amenable number.

201444013 is a deficient number, since it is larger than the sum of its proper divisors (1).

201444013 is an equidigital number, since it uses as much as digits as its factorization.

201444013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 201444013 is about 14193.0973716099. The cubic root of 201444013 is about 586.2076137706.

Adding to 201444013 its reverse (310444102), we get a palindrome (511888115).

The spelling of 201444013 in words is "two hundred one million, four hundred forty-four thousand, thirteen".