142143492 has 24 divisors (see below), whose sum is σ = 340633216. Its totient is φ = 46100448.

The previous prime is 142143479. The next prime is 142143497. The reversal of 142143492 is 294341241.

142143492 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (142143497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159628 + ... + 160515.

Almost surely, 2^142143492 is an apocalyptic number.

142143492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142143492 is an abundant number, since it is smaller than the sum of its proper divisors (198489724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142143492 is a wasteful number, since it uses less digits than its factorization.

142143492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320187 (or 320185 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 142143492 is about 11922.3945581414. The cubic root of 142143492 is about 521.8860161276.

The spelling of 142143492 in words is "one hundred forty-two million, one hundred forty-three thousand, four hundred ninety-two".