201144404 has 6 divisors (see below), whose sum is σ = 352002714. Its totient is φ = 100572200.

The previous prime is 201144403. The next prime is 201144421. The reversal of 201144404 is 404441102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 157452304 + 43692100 = 12548^2 + 6610^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201144403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25143047 + ... + 25143054.

It is an arithmetic number, because the mean of its divisors is an integer number (58667119).

Almost surely, 2^201144404 is an apocalyptic number.

It is an amenable number.

201144404 is a deficient number, since it is larger than the sum of its proper divisors (150858310).

201144404 is a wasteful number, since it uses less digits than its factorization.

201144404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50286105 (or 50286103 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 201144404 is about 14182.5387008109. The cubic root of 201144404 is about 585.9168460948.

Adding to 201144404 its reverse (404441102), we get a palindrome (605585506).

The spelling of 201144404 in words is "two hundred one million, one hundred forty-four thousand, four hundred four".