142266188 has 12 divisors (see below), whose sum is σ = 254756040. Its totient is φ = 69478752.

The previous prime is 142266139. The next prime is 142266191. The reversal of 142266188 is 881662241.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413393 + ... + 413736.

It is an arithmetic number, because the mean of its divisors is an integer number (21229670).

Almost surely, 2^142266188 is an apocalyptic number.

It is an amenable number.

142266188 is a deficient number, since it is larger than the sum of its proper divisors (112489852).

142266188 is a wasteful number, since it uses less digits than its factorization.

142266188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827176 (or 827174 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 142266188 is about 11927.5390588336. The cubic root of 142266188 is about 522.0361341770.

The spelling of 142266188 in words is "one hundred forty-two million, two hundred sixty-six thousand, one hundred eighty-eight".