142131432 has 16 divisors (see below), whose sum is σ = 355328640. Its totient is φ = 47377136.

The previous prime is 142131427. The next prime is 142131439. The reversal of 142131432 is 234131241.

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 = 142131399 and 142131408.

It is not an unprimeable number, because it can be changed into a prime (142131439) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2961048 + ... + 2961095.

It is an arithmetic number, because the mean of its divisors is an integer number (22208040).

Almost surely, 2^142131432 is an apocalyptic number.

142131432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142131432 is an abundant number, since it is smaller than the sum of its proper divisors (213197208).

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

142131432 is a wasteful number, since it uses less digits than its factorization.

142131432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5922152 (or 5922148 counting only the distinct ones).

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

The square root of 142131432 is about 11921.8887765320. Note that the first 3 decimals coincide. The cubic root of 142131432 is about 521.8712561052.

Adding to 142131432 its reverse (234131241), we get a palindrome (376262673).

The spelling of 142131432 in words is "one hundred forty-two million, one hundred thirty-one thousand, four hundred thirty-two".