142244312 has 32 divisors (see below), whose sum is σ = 305337600. Its totient is φ = 60856224.

The previous prime is 142244309. The next prime is 142244327. The reversal of 142244312 is 213442241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36389 + ... + 40107.

It is an arithmetic number, because the mean of its divisors is an integer number (9541800).

Almost surely, 2^142244312 is an apocalyptic number.

It is an amenable number.

142244312 is an abundant number, since it is smaller than the sum of its proper divisors (163093288).

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

142244312 is a wasteful number, since it uses less digits than its factorization.

142244312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4415 (or 4411 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 142244312 is about 11926.6219861283. The cubic root of 142244312 is about 522.0093753056.

Adding to 142244312 its reverse (213442241), we get a palindrome (355686553).

The spelling of 142244312 in words is "one hundred forty-two million, two hundred forty-four thousand, three hundred twelve".