212304542 has 8 divisors (see below), whose sum is σ = 318518832. Its totient is φ = 106131600.

The previous prime is 212304529. The next prime is 212304553. The reversal of 212304542 is 245403212.

It is a happy number.

212304542 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13442 + ... + 24602.

It is an arithmetic number, because the mean of its divisors is an integer number (39814854).

Almost surely, 2^212304542 is an apocalyptic number.

212304542 is a deficient number, since it is larger than the sum of its proper divisors (106214290).

212304542 is a wasteful number, since it uses less digits than its factorization.

212304542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20674.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 212304542 is about 14570.6740406887. The cubic root of 212304542 is about 596.5585783975.

Adding to 212304542 its reverse (245403212), we get a palindrome (457707754).

The spelling of 212304542 in words is "two hundred twelve million, three hundred four thousand, five hundred forty-two".