142434111 has 12 divisors (see below), whose sum is σ = 194047832. Its totient is φ = 92931408.

The previous prime is 142434067. The next prime is 142434113. The reversal of 142434111 is 111434241.

It is not a de Polignac number, because 142434111 - 2¹¹ = 142432063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142434113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4120 + ... + 17373.

Almost surely, 2^142434111 is an apocalyptic number.

142434111 is a deficient number, since it is larger than the sum of its proper divisors (51613721).

142434111 is an equidigital number, since it uses as much as digits as its factorization.

142434111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21590 (or 21543 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 142434111 is about 11934.5762807064. The cubic root of 142434111 is about 522.2414474404.

Adding to 142434111 its reverse (111434241), we get a palindrome (253868352).

The spelling of 142434111 in words is "one hundred forty-two million, four hundred thirty-four thousand, one hundred eleven".