212312134 has 8 divisors (see below), whose sum is σ = 318755160. Its totient is φ = 106060416.

The previous prime is 212312129. The next prime is 212312141. The reversal of 212312134 is 431213212.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45019 + ... + 49510.

It is an arithmetic number, because the mean of its divisors is an integer number (39844395).

Almost surely, 2^212312134 is an apocalyptic number.

212312134 is a deficient number, since it is larger than the sum of its proper divisors (106443026).

212312134 is a wasteful number, since it uses less digits than its factorization.

212312134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95654.

The product of its digits is 288, while the sum is 19.

The square root of 212312134 is about 14570.9345616539. The cubic root of 212312134 is about 596.5656892812.

Adding to 212312134 its reverse (431213212), we get a palindrome (643525346).

The spelling of 212312134 in words is "two hundred twelve million, three hundred twelve thousand, one hundred thirty-four".