142243656 has 64 divisors (see below), whose sum is σ = 365851200. Its totient is φ = 46061568.

The previous prime is 142243571. The next prime is 142243663. The reversal of 142243656 is 656342241.

142243656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347580 + ... + 347988.

It is an arithmetic number, because the mean of its divisors is an integer number (5716425).

Almost surely, 2^142243656 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 142243656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182925600).

142243656 is an abundant number, since it is smaller than the sum of its proper divisors (223607544).

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

142243656 is a wasteful number, since it uses less digits than its factorization.

142243656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 794 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 142243656 is about 11926.5944845962. The cubic root of 142243656 is about 522.0085728396.

Adding to 142243656 its reverse (656342241), we get a palindrome (798585897).

The spelling of 142243656 in words is "one hundred forty-two million, two hundred forty-three thousand, six hundred fifty-six".