142321022 has 8 divisors (see below), whose sum is σ = 213532200. Its totient is φ = 71143624.

The previous prime is 142320979. The next prime is 142321043. The reversal of 142321022 is 220123241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11729 + ... + 20547.

It is an arithmetic number, because the mean of its divisors is an integer number (26691525).

Almost surely, 2^142321022 is an apocalyptic number.

142321022 is a deficient number, since it is larger than the sum of its proper divisors (71211178).

142321022 is an equidigital number, since it uses as much as digits as its factorization.

142321022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16890.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142321022 is about 11929.8374674595. The cubic root of 142321022 is about 522.1031954440.

Adding to 142321022 its reverse (220123241), we get a palindrome (362444263).

The spelling of 142321022 in words is "one hundred forty-two million, three hundred twenty-one thousand, twenty-two".