201444001 has 8 divisors (see below), whose sum is σ = 221891904. Its totient is φ = 181351920.

The previous prime is 201443993. The next prime is 201444007. The reversal of 201444001 is 100444102.

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

It is a cyclic number.

It is not a de Polignac number, because 201444001 - 2³ = 201443993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201444007) 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, 87766 + ... + 90031.

It is an arithmetic number, because the mean of its divisors is an integer number (27736488).

Almost surely, 2^201444001 is an apocalyptic number.

It is an amenable number.

201444001 is a deficient number, since it is larger than the sum of its proper divisors (20447903).

201444001 is a wasteful number, since it uses less digits than its factorization.

201444001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177911.

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

The square root of 201444001 is about 14193.0969488692. The cubic root of 201444001 is about 586.2076021305.

Adding to 201444001 its reverse (100444102), we get a palindrome (301888103).

The spelling of 201444001 in words is "two hundred one million, four hundred forty-four thousand, one".