212325305 has 16 divisors (see below), whose sum is σ = 268237440. Its totient is φ = 161027328.

The previous prime is 212325301. The next prime is 212325307. The reversal of 212325305 is 503523212.

It is a cyclic number.

It is not a de Polignac number, because 212325305 - 2² = 212325301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (212325301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4826 + ... + 21164.

It is an arithmetic number, because the mean of its divisors is an integer number (16764840).

Almost surely, 2^212325305 is an apocalyptic number.

It is an amenable number.

212325305 is a deficient number, since it is larger than the sum of its proper divisors (55912135).

212325305 is a wasteful number, since it uses less digits than its factorization.

212325305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16480.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 212325305 is about 14571.3865160458. The cubic root of 212325305 is about 596.5780252134.

Adding to 212325305 its reverse (503523212), we get a palindrome (715848517).

The spelling of 212325305 in words is "two hundred twelve million, three hundred twenty-five thousand, three hundred five".