142244012 has 6 divisors (see below), whose sum is σ = 248927028. Its totient is φ = 71122004.

The previous prime is 142243999. The next prime is 142244017. The reversal of 142244012 is 210442241.

142244012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142244012² = 40466717899712288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142244017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17780498 + ... + 17780505.

It is an arithmetic number, because the mean of its divisors is an integer number (41487838).

Almost surely, 2^142244012 is an apocalyptic number.

It is an amenable number.

142244012 is a deficient number, since it is larger than the sum of its proper divisors (106683016).

142244012 is a wasteful number, since it uses less digits than its factorization.

142244012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35561007 (or 35561005 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 142244012 is about 11926.6094092160. The cubic root of 142244012 is about 522.0090083245.

Adding to 142244012 its reverse (210442241), we get a palindrome (352686253).

The spelling of 142244012 in words is "one hundred forty-two million, two hundred forty-four thousand, twelve".