212143342 has 8 divisors (see below), whose sum is σ = 318353616. Its totient is φ = 106025472.

The previous prime is 212143339. The next prime is 212143343. The reversal of 212143342 is 243341212.

212143342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212143343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17043 + ... + 26734.

It is an arithmetic number, because the mean of its divisors is an integer number (39794202).

Almost surely, 2^212143342 is an apocalyptic number.

212143342 is a deficient number, since it is larger than the sum of its proper divisors (106210274).

212143342 is a wasteful number, since it uses less digits than its factorization.

212143342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46202.

The product of its digits is 1152, while the sum is 22.

The square root of 212143342 is about 14565.1413312745. The cubic root of 212143342 is about 596.4075538501.

Adding to 212143342 its reverse (243341212), we get a palindrome (455484554).

The spelling of 212143342 in words is "two hundred twelve million, one hundred forty-three thousand, three hundred forty-two".