201144027 has 24 divisors (see below), whose sum is σ = 316743168. Its totient is φ = 111220560.

The previous prime is 201143977. The next prime is 201144037. The reversal of 201144027 is 720441102.

It is a happy number.

It is not a de Polignac number, because 201144027 - 2⁶ = 201143963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 201143994 and 201144012.

It is not an unprimeable number, because it can be changed into a prime (201144037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15198 + ... + 25164.

It is an arithmetic number, because the mean of its divisors is an integer number (13197632).

Almost surely, 2^201144027 is an apocalyptic number.

201144027 is a deficient number, since it is larger than the sum of its proper divisors (115599141).

201144027 is an equidigital number, since it uses as much as digits as its factorization.

201144027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10039 (or 10008 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 201144027 is about 14182.5254098133. The cubic root of 201144027 is about 585.9164800381.

Adding to 201144027 its reverse (720441102), we get a palindrome (921585129).

The spelling of 201144027 in words is "two hundred one million, one hundred forty-four thousand, twenty-seven".