142012112 has 40 divisors (see below), whose sum is σ = 303007392. Its totient is φ = 63939200.

The previous prime is 142012111. The next prime is 142012121. The reversal of 142012112 is 211210241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142012111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15062 + ... + 22602.

Almost surely, 2^142012112 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 142012112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151503696).

142012112 is an abundant number, since it is smaller than the sum of its proper divisors (160995280).

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

142012112 is a wasteful number, since it uses less digits than its factorization.

142012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7667 (or 7661 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 142012112 is about 11916.8834852070. The cubic root of 142012112 is about 521.7251774352.

Adding to 142012112 its reverse (211210241), we get a palindrome (353222353).

The spelling of 142012112 in words is "one hundred forty-two million, twelve thousand, one hundred twelve".