140142311 has 2 divisors, whose sum is σ = 140142312. Its totient is φ = 140142310.

The previous prime is 140142269. The next prime is 140142313. The reversal of 140142311 is 113241041.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (113241041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140142311 - 2²⁶ = 73033447 is a prime.

Together with 140142313, it forms a pair of twin primes.

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 140142311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140142313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70071155 + 70071156.

It is an arithmetic number, because the mean of its divisors is an integer number (70071156).

Almost surely, 2^140142311 is an apocalyptic number.

140142311 is a deficient number, since it is larger than the sum of its proper divisors (1).

140142311 is an equidigital number, since it uses as much as digits as its factorization.

140142311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 140142311 is about 11838.1717760810. The cubic root of 140142311 is about 519.4252908487.

Adding to 140142311 its reverse (113241041), we get a palindrome (253383352).

The spelling of 140142311 in words is "one hundred forty million, one hundred forty-two thousand, three hundred eleven".