212743124 has 12 divisors (see below), whose sum is σ = 406146048. Its totient is φ = 96701400.

The previous prime is 212743109. The next prime is 212743127. The reversal of 212743124 is 421347212.

It is a junction number, because it is equal to n+sod(n) for n = 212743093 and 212743102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212743127) 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, 2417492 + ... + 2417579.

It is an arithmetic number, because the mean of its divisors is an integer number (33845504).

Almost surely, 2^212743124 is an apocalyptic number.

It is an amenable number.

212743124 is a deficient number, since it is larger than the sum of its proper divisors (193402924).

212743124 is a wasteful number, since it uses less digits than its factorization.

212743124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835086 (or 4835084 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 212743124 is about 14585.7164376660. The cubic root of 212743124 is about 596.9690891539.

The spelling of 212743124 in words is "two hundred twelve million, seven hundred forty-three thousand, one hundred twenty-four".