142431132 has 12 divisors (see below), whose sum is σ = 332339336. Its totient is φ = 47477040.

The previous prime is 142431131. The next prime is 142431137. The reversal of 142431132 is 231134241.

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 = 142431099 and 142431108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142431131) 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, 5934619 + ... + 5934642.

Almost surely, 2^142431132 is an apocalyptic number.

142431132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142431132 is an abundant number, since it is smaller than the sum of its proper divisors (189908204).

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

142431132 is a wasteful number, since it uses less digits than its factorization.

142431132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11869268 (or 11869266 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 142431132 is about 11934.4514746175. The cubic root of 142431132 is about 522.2378065332.

Adding to 142431132 its reverse (231134241), we get a palindrome (373565373).

The spelling of 142431132 in words is "one hundred forty-two million, four hundred thirty-one thousand, one hundred thirty-two".