142021352 has 96 divisors (see below), whose sum is σ = 319831200. Its totient is φ = 58464000.

The previous prime is 142021351. The next prime is 142021361. The reversal of 142021352 is 253120241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142021351) 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 in 23 ways as a sum of consecutive naturals, for example, 1406102 + ... + 1406202.

It is an arithmetic number, because the mean of its divisors is an integer number (3331575).

Almost surely, 2^142021352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142021352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159915600).

142021352 is an abundant number, since it is smaller than the sum of its proper divisors (177809848).

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

142021352 is a wasteful number, since it uses less digits than its factorization.

142021352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 142021352 is about 11917.2711641550. The cubic root of 142021352 is about 521.7364925173.

Adding to 142021352 its reverse (253120241), we get a palindrome (395141593).

The spelling of 142021352 in words is "one hundred forty-two million, twenty-one thousand, three hundred fifty-two".