142320522 has 8 divisors (see below), whose sum is σ = 284641056. Its totient is φ = 47440172.

The previous prime is 142320517. The next prime is 142320533. The reversal of 142320522 is 225023241.

142320522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

142320522 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11860038 + ... + 11860049.

It is an arithmetic number, because the mean of its divisors is an integer number (35580132).

Almost surely, 2^142320522 is an apocalyptic number.

142320522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

142320522 is a wasteful number, since it uses less digits than its factorization.

142320522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23720092.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 142320522 is about 11929.8165115814. The cubic root of 142320522 is about 522.1025840284.

Adding to 142320522 its reverse (225023241), we get a palindrome (367343763).

It can be divided in two parts, 1423 and 20522, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 142320522 in words is "one hundred forty-two million, three hundred twenty thousand, five hundred twenty-two".