201440143 has 2 divisors, whose sum is σ = 201440144. Its totient is φ = 201440142.

The previous prime is 201440131. The next prime is 201440153. The reversal of 201440143 is 341044102.

201440143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201440143 - 2⁵ = 201440111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201440143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201440153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100720071 + 100720072.

It is an arithmetic number, because the mean of its divisors is an integer number (100720072).

Almost surely, 2^201440143 is an apocalyptic number.

201440143 is a deficient number, since it is larger than the sum of its proper divisors (1).

201440143 is an equidigital number, since it uses as much as digits as its factorization.

201440143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 201440143 is about 14192.9610370775. The cubic root of 201440143 is about 586.2038598111.

Adding to 201440143 its reverse (341044102), we get a palindrome (542484245).

The spelling of 201440143 in words is "two hundred one million, four hundred forty thousand, one hundred forty-three".