142432111 has 6 divisors (see below), whose sum is σ = 143290280. Its totient is φ = 141579048.

The previous prime is 142432097. The next prime is 142432159. The reversal of 142432111 is 111234241.

It is not a de Polignac number, because 142432111 - 2¹⁵ = 142399343 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 (142430111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27550 + ... + 32308.

Almost surely, 2^142432111 is an apocalyptic number.

142432111 is a deficient number, since it is larger than the sum of its proper divisors (858169).

142432111 is an frugal number, since it uses more digits than its factorization.

142432111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105 (or 4932 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 142432111 is about 11934.4924902570. The cubic root of 142432111 is about 522.2390030639.

Adding to 142432111 its reverse (111234241), we get a palindrome (253666352).

The spelling of 142432111 in words is "one hundred forty-two million, four hundred thirty-two thousand, one hundred eleven".