212315133 has 8 divisors (see below), whose sum is σ = 285124000. Its totient is φ = 140524848.

The previous prime is 212315111. The next prime is 212315137. The reversal of 212315133 is 331513212.

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

It is not a de Polignac number, because 212315133 - 2⁶ = 212315069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212315137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254158 + ... + 254991.

It is an arithmetic number, because the mean of its divisors is an integer number (35640500).

Almost surely, 2^212315133 is an apocalyptic number.

It is an amenable number.

212315133 is a deficient number, since it is larger than the sum of its proper divisors (72808867).

212315133 is a wasteful number, since it uses less digits than its factorization.

212315133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509291.

The product of its digits is 540, while the sum is 21.

The square root of 212315133 is about 14571.0374716422. The cubic root of 212315133 is about 596.5684981835.

Adding to 212315133 its reverse (331513212), we get a palindrome (543828345).

The spelling of 212315133 in words is "two hundred twelve million, three hundred fifteen thousand, one hundred thirty-three".