142544128 has 72 divisors (see below), whose sum is σ = 297095400. Its totient is φ = 68198400.

The previous prime is 142544123. The next prime is 142544161. The reversal of 142544128 is 821445241.

It can be written as a sum of positive squares in 4 ways, for example, as 58491904 + 84052224 = 7648^2 + 9168^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142544128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142544123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956598 + ... + 956746.

It is an arithmetic number, because the mean of its divisors is an integer number (4126325).

Almost surely, 2^142544128 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 142544128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148547700).

142544128 is an abundant number, since it is smaller than the sum of its proper divisors (154551272).

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

142544128 is a wasteful number, since it uses less digits than its factorization.

142544128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 289 counting only the distinct ones).

The product of its digits is 10240, while the sum is 31.

The square root of 142544128 is about 11939.1845617697. The cubic root of 142544128 is about 522.3758736914.

Adding to 142544128 its reverse (821445241), we get a palindrome (963989369).

The spelling of 142544128 in words is "one hundred forty-two million, five hundred forty-four thousand, one hundred twenty-eight".