142032143 has 4 divisors (see below), whose sum is σ = 154944168. Its totient is φ = 129120120.

The previous prime is 142032131. The next prime is 142032151. The reversal of 142032143 is 341230241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142032143 - 2⁸ = 142031887 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 (142032113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6455996 + ... + 6456017.

It is an arithmetic number, because the mean of its divisors is an integer number (38736042).

Almost surely, 2^142032143 is an apocalyptic number.

142032143 is a deficient number, since it is larger than the sum of its proper divisors (12912025).

142032143 is a wasteful number, since it uses less digits than its factorization.

142032143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12912024.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 142032143 is about 11917.7239018195. The cubic root of 142032143 is about 521.7497062954.

Adding to 142032143 its reverse (341230241), we get a palindrome (483262384).

The spelling of 142032143 in words is "one hundred forty-two million, thirty-two thousand, one hundred forty-three".