201112144 has 10 divisors (see below), whose sum is σ = 389654810. Its totient is φ = 100556064.

The previous prime is 201112111. The next prime is 201112189. The reversal of 201112144 is 441211102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 188238400 + 12873744 = 13720^2 + 3588^2 .

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 12569509 = 201112144 / (2 + 0 + 1 + 1 + 1 + 2 + 1 + 4 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6284739 + ... + 6284770.

It is an arithmetic number, because the mean of its divisors is an integer number (38965481).

Almost surely, 2^201112144 is an apocalyptic number.

It is an amenable number.

201112144 is a deficient number, since it is larger than the sum of its proper divisors (188542666).

201112144 is a wasteful number, since it uses less digits than its factorization.

201112144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12569517 (or 12569511 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 201112144 is about 14181.4013411933. The cubic root of 201112144 is about 585.8855208584.

Adding to 201112144 its reverse (441211102), we get a palindrome (642323246).

The spelling of 201112144 in words is "two hundred one million, one hundred twelve thousand, one hundred forty-four".