142231332 has 12 divisors (see below), whose sum is σ = 331873136. Its totient is φ = 47410440.

The previous prime is 142231307. The next prime is 142231339. The reversal of 142231332 is 233132241.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 142231299 and 142231308.

It is not an unprimeable number, because it can be changed into a prime (142231339) 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, 5926294 + ... + 5926317.

Almost surely, 2^142231332 is an apocalyptic number.

142231332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142231332 is an abundant number, since it is smaller than the sum of its proper divisors (189641804).

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

142231332 is a wasteful number, since it uses less digits than its factorization.

142231332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11852618 (or 11852616 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 142231332 is about 11926.0778129274. The cubic root of 142231332 is about 521.9934967849.

Adding to 142231332 its reverse (233132241), we get a palindrome (375363573).

Subtracting 142231332 from its reverse (233132241), we obtain a palindrome (90900909).

The spelling of 142231332 in words is "one hundred forty-two million, two hundred thirty-one thousand, three hundred thirty-two".