212315126 has 8 divisors (see below), whose sum is σ = 318678624. Its totient is φ = 106088920.

The previous prime is 212315111. The next prime is 212315137. The reversal of 212315126 is 621513212.

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

It is a Curzon number.

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, 30365 + ... + 36696.

It is an arithmetic number, because the mean of its divisors is an integer number (39834828).

Almost surely, 2^212315126 is an apocalyptic number.

212315126 is a deficient number, since it is larger than the sum of its proper divisors (106363498).

212315126 is a wasteful number, since it uses less digits than its factorization.

212315126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68646.

The product of its digits is 720, while the sum is 23.

The square root of 212315126 is about 14571.0372314396. The cubic root of 212315126 is about 596.5684916272.

Adding to 212315126 its reverse (621513212), we get a palindrome (833828338).

The spelling of 212315126 in words is "two hundred twelve million, three hundred fifteen thousand, one hundred twenty-six".