142142208 has 144 divisors (see below), whose sum is σ = 425806080. Its totient is φ = 41766912.

The previous prime is 142142183. The next prime is 142142227. The reversal of 142142208 is 802241241.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229323 + ... + 229941.

Almost surely, 2^142142208 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 142142208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212903040).

142142208 is an abundant number, since it is smaller than the sum of its proper divisors (283663872).

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

142142208 is a wasteful number, since it uses less digits than its factorization.

142142208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 142142208 is about 11922.3407097768. The cubic root of 142142208 is about 521.8844447022.

Adding to 142142208 its reverse (802241241), we get a palindrome (944383449).

The spelling of 142142208 in words is "one hundred forty-two million, one hundred forty-two thousand, two hundred eight".