142231232 has 56 divisors (see below), whose sum is σ = 331604112. Its totient is φ = 59673600.

The previous prime is 142231181. The next prime is 142231249. The reversal of 142231232 is 232132241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1382 + ... + 16922.

It is an arithmetic number, because the mean of its divisors is an integer number (5921502).

Almost surely, 2^142231232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142231232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165802056).

142231232 is an abundant number, since it is smaller than the sum of its proper divisors (189372880).

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

142231232 is a wasteful number, since it uses less digits than its factorization.

142231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15577 (or 15567 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 142231232 is about 11926.0736204335. The cubic root of 142231232 is about 521.9933744504.

Adding to 142231232 its reverse (232132241), we get a palindrome (374363473).

The spelling of 142231232 in words is "one hundred forty-two million, two hundred thirty-one thousand, two hundred thirty-two".