142212206 has 8 divisors (see below), whose sum is σ = 214250520. Its totient is φ = 70795368.

The previous prime is 142212199. The next prime is 142212233. The reversal of 142212206 is 602212241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154796 + ... + 155711.

It is an arithmetic number, because the mean of its divisors is an integer number (26781315).

Almost surely, 2^142212206 is an apocalyptic number.

142212206 is a deficient number, since it is larger than the sum of its proper divisors (72038314).

142212206 is a wasteful number, since it uses less digits than its factorization.

142212206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310738.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 142212206 is about 11925.2759297217. The cubic root of 142212206 is about 521.9700980606.

Adding to 142212206 its reverse (602212241), we get a palindrome (744424447).

The spelling of 142212206 in words is "one hundred forty-two million, two hundred twelve thousand, two hundred six".