140144111 has 2 divisors, whose sum is σ = 140144112. Its totient is φ = 140144110.

The previous prime is 140144063. The next prime is 140144143. The reversal of 140144111 is 111441041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140144111 - 2⁶ = 140144047 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140144111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140144161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70072055 + 70072056.

It is an arithmetic number, because the mean of its divisors is an integer number (70072056).

Almost surely, 2^140144111 is an apocalyptic number.

140144111 is a deficient number, since it is larger than the sum of its proper divisors (1).

140144111 is an equidigital number, since it uses as much as digits as its factorization.

140144111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 140144111 is about 11838.2478010895. The cubic root of 140144111 is about 519.4275146870.

Adding to 140144111 its reverse (111441041), we get a palindrome (251585152).

The spelling of 140144111 in words is "one hundred forty million, one hundred forty-four thousand, one hundred eleven".