142021324 has 12 divisors (see below), whose sum is σ = 250352424. Its totient is φ = 70492064.

The previous prime is 142021301. The next prime is 142021331. The reversal of 142021324 is 423120241.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 129034 + ... + 130129.

It is an arithmetic number, because the mean of its divisors is an integer number (20862702).

Almost surely, 2^142021324 is an apocalyptic number.

It is an amenable number.

142021324 is a deficient number, since it is larger than the sum of its proper divisors (108331100).

142021324 is a wasteful number, since it uses less digits than its factorization.

142021324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259304 (or 259302 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142021324 is about 11917.2699893893. The cubic root of 142021324 is about 521.7364582299.

Adding to 142021324 its reverse (423120241), we get a palindrome (565141565).

The spelling of 142021324 in words is "one hundred forty-two million, twenty-one thousand, three hundred twenty-four".