201044401 has 2 divisors, whose sum is σ = 201044402. Its totient is φ = 201044400.

The previous prime is 201044399. The next prime is 201044407. The reversal of 201044401 is 104440102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193210000 + 7834401 = 13900^2 + 2799^2 .

It is a cyclic number.

It is not a de Polignac number, because 201044401 - 2¹ = 201044399 is a prime.

Together with 201044399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (201044407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100522200 + 100522201.

It is an arithmetic number, because the mean of its divisors is an integer number (100522201).

Almost surely, 2^201044401 is an apocalyptic number.

It is an amenable number.

201044401 is a deficient number, since it is larger than the sum of its proper divisors (1).

201044401 is an equidigital number, since it uses as much as digits as its factorization.

201044401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 201044401 is about 14179.0126948247. The cubic root of 201044401 is about 585.8197298702.

Adding to 201044401 its reverse (104440102), we get a palindrome (305484503).

The spelling of 201044401 in words is "two hundred one million, forty-four thousand, four hundred one".