142857111 has 32 divisors (see below), whose sum is σ = 202245120. Its totient is φ = 89582976.

The previous prime is 142857107. The next prime is 142857133. The reversal of 142857111 is 111758241.

142857111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142857111 - 2² = 142857107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142857151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 725065 + ... + 725261.

It is an arithmetic number, because the mean of its divisors is an integer number (6320160).

Almost surely, 2^142857111 is an apocalyptic number.

142857111 is a deficient number, since it is larger than the sum of its proper divisors (59388009).

142857111 is a wasteful number, since it uses less digits than its factorization.

142857111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423.

The product of its digits is 2240, while the sum is 30.

The square root of 142857111 is about 11952.2847606640. The cubic root of 142857111 is about 522.7579197164.

The spelling of 142857111 in words is "one hundred forty-two million, eight hundred fifty-seven thousand, one hundred eleven".