142763143 has 4 divisors (see below), whose sum is σ = 147686040. Its totient is φ = 137840248.

The previous prime is 142763129. The next prime is 142763177. The reversal of 142763143 is 341367241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341367241 = 433 ⋅788377.

It is a de Polignac number, because none of the positive numbers 2^k-142763143 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 (142763443) 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, 2461405 + ... + 2461462.

It is an arithmetic number, because the mean of its divisors is an integer number (36921510).

Almost surely, 2^142763143 is an apocalyptic number.

142763143 is a deficient number, since it is larger than the sum of its proper divisors (4922897).

142763143 is an equidigital number, since it uses as much as digits as its factorization.

142763143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4922896.

The product of its digits is 12096, while the sum is 31.

The square root of 142763143 is about 11948.3531501207. The cubic root of 142763143 is about 522.6432753459.

The spelling of 142763143 in words is "one hundred forty-two million, seven hundred sixty-three thousand, one hundred forty-three".