142240112 has 20 divisors (see below), whose sum is σ = 314960496. Its totient is φ = 60960000.

The previous prime is 142240103. The next prime is 142240123. The reversal of 142240112 is 211042241.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 634889 + ... + 635112.

Almost surely, 2^142240112 is an apocalyptic number.

It is an amenable number.

142240112 is an abundant number, since it is smaller than the sum of its proper divisors (172720384).

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

142240112 is a wasteful number, since it uses less digits than its factorization.

142240112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270016 (or 1270010 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 142240112 is about 11926.4459081488. The cubic root of 142240112 is about 522.0042375233.

Adding to 142240112 its reverse (211042241), we get a palindrome (353282353).

The spelling of 142240112 in words is "one hundred forty-two million, two hundred forty thousand, one hundred twelve".