212304142 has 16 divisors (see below), whose sum is σ = 320973840. Its totient is φ = 105316288.

The previous prime is 212304139. The next prime is 212304161. The reversal of 212304142 is 241403212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223713 + ... + 224659.

It is an arithmetic number, because the mean of its divisors is an integer number (20060865).

Almost surely, 2^212304142 is an apocalyptic number.

212304142 is a deficient number, since it is larger than the sum of its proper divisors (108669698).

212304142 is a wasteful number, since it uses less digits than its factorization.

212304142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 212304142 is about 14570.6603144813. The cubic root of 212304142 is about 596.5582037414.

Adding to 212304142 its reverse (241403212), we get a palindrome (453707354).

The spelling of 212304142 in words is "two hundred twelve million, three hundred four thousand, one hundred forty-two".