142031432 has 8 divisors (see below), whose sum is σ = 266308950. Its totient is φ = 71015712.

The previous prime is 142031423. The next prime is 142031437. The reversal of 142031432 is 234130241.

142031432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 137217796 + 4813636 = 11714^2 + 2194^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (142031437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8876957 + ... + 8876972.

Almost surely, 2^142031432 is an apocalyptic number.

It is an amenable number.

142031432 is a deficient number, since it is larger than the sum of its proper divisors (124277518).

142031432 is a wasteful number, since it uses less digits than its factorization.

142031432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17753935 (or 17753931 counting only the distinct ones).

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

The square root of 142031432 is about 11917.6940722608. The cubic root of 142031432 is about 521.7488356834.

Adding to 142031432 its reverse (234130241), we get a palindrome (376161673).

The spelling of 142031432 in words is "one hundred forty-two million, thirty-one thousand, four hundred thirty-two".