142831768 has 8 divisors (see below), whose sum is σ = 267809580. Its totient is φ = 71415880.

The previous prime is 142831751. The next prime is 142831769. The reversal of 142831768 is 867138241.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 142831768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142831769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8926978 + ... + 8926993.

Almost surely, 2^142831768 is an apocalyptic number.

It is an amenable number.

142831768 is a deficient number, since it is larger than the sum of its proper divisors (124977812).

142831768 is a wasteful number, since it uses less digits than its factorization.

142831768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17853977 (or 17853973 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 142831768 is about 11951.2245397700. The cubic root of 142831768 is about 522.7270052887.

The spelling of 142831768 in words is "one hundred forty-two million, eight hundred thirty-one thousand, seven hundred sixty-eight".