212315286 has 16 divisors (see below), whose sum is σ = 425179584. Its totient is φ = 70680264.

The previous prime is 212315273. The next prime is 212315303. The reversal of 212315286 is 682513212.

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, 17760 + ... + 27203.

It is an arithmetic number, because the mean of its divisors is an integer number (26573724).

Almost surely, 2^212315286 is an apocalyptic number.

212315286 is an abundant number, since it is smaller than the sum of its proper divisors (212864298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212315286 is a wasteful number, since it uses less digits than its factorization.

212315286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45755.

The product of its digits is 5760, while the sum is 30.

The square root of 212315286 is about 14571.0427217821. The cubic root of 212315286 is about 596.5686414845.

Adding to 212315286 its reverse (682513212), we get a palindrome (894828498).

The spelling of 212315286 in words is "two hundred twelve million, three hundred fifteen thousand, two hundred eighty-six".