142311 has 16 divisors (see below), whose sum is σ = 211680. Its totient is φ = 84480.

The previous prime is 142297. The next prime is 142319. The reversal of 142311 is 113241.

It is a happy number.

142311 is a nontrivial binomial coefficient, being equal to C(534, 2).

It is not a de Polignac number, because 142311 - 2⁷ = 142183 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142311.

It is not an unprimeable number, because it can be changed into a prime (142319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1555 + ... + 1643.

It is an arithmetic number, because the mean of its divisors is an integer number (13230).

2¹⁴²³¹¹ is an apocalyptic number.

142311 is the 533-rd triangular number and also the 267-th hexagonal number.

142311 is a deficient number, since it is larger than the sum of its proper divisors (69369).

142311 is a wasteful number, since it uses less digits than its factorization.

142311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146.

The product of its digits is 24, while the sum is 12.

The square root of 142311 is about 377.2413020866. The cubic root of 142311 is about 52.2090939955.

Adding to 142311 its reverse (113241), we get a palindrome (255552).

The spelling of 142311 in words is "one hundred forty-two thousand, three hundred eleven", and thus it is an iban number.