142220043144 has 48 divisors (see below), whose sum is σ = 385475601420. Its totient is φ = 47370211200.

The previous prime is 142220043101. The next prime is 142220043149. The reversal of 142220043144 is 441340022241.

142220043144 is a `hidden beast` number, since 1 + 4 + 2 + 220 + 0 + 431 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 142136540100 + 83503044 = 377010^2 + 9138^2 .

It is not an unprimeable number, because it can be changed into a prime (142220043149) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 665467 + ... + 852810.

Almost surely, 2^142220043144 is an apocalyptic number.

It is an amenable number.

142220043144 is an abundant number, since it is smaller than the sum of its proper divisors (243255558276).

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

142220043144 is a wasteful number, since it uses less digits than its factorization.

142220043144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519590 (or 1519583 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 142220043144 its reverse (441340022241), we get a palindrome (583560065385).

The spelling of 142220043144 in words is "one hundred forty-two billion, two hundred twenty million, forty-three thousand, one hundred forty-four".