142143204 has 24 divisors (see below), whose sum is σ = 379048768. Its totient is φ = 40612320.

The previous prime is 142143143. The next prime is 142143217. The reversal of 142143204 is 402341241.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846007 + ... + 846174.

Almost surely, 2^142143204 is an apocalyptic number.

142143204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142143204 is an abundant number, since it is smaller than the sum of its proper divisors (236905564).

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

142143204 is a wasteful number, since it uses less digits than its factorization.

142143204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692195 (or 1692193 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 142143204 is about 11922.3824800247. The cubic root of 142143204 is about 521.8856636591.

Adding to 142143204 its reverse (402341241), we get a palindrome (544484445).

The spelling of 142143204 in words is "one hundred forty-two million, one hundred forty-three thousand, two hundred four".