212023345 has 8 divisors (see below), whose sum is σ = 259841664. Its totient is φ = 166009584.

The previous prime is 212023327. The next prime is 212023349. The reversal of 212023345 is 543320212.

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

It is a cyclic number.

It is not a de Polignac number, because 212023345 - 2⁵ = 212023313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212023349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450879 + ... + 451348.

It is an arithmetic number, because the mean of its divisors is an integer number (32480208).

Almost surely, 2^212023345 is an apocalyptic number.

It is an amenable number.

212023345 is a deficient number, since it is larger than the sum of its proper divisors (47818319).

212023345 is an equidigital number, since it uses as much as digits as its factorization.

212023345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902279.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 212023345 is about 14561.0214270840. The cubic root of 212023345 is about 596.2950817600.

Adding to 212023345 its reverse (543320212), we get a palindrome (755343557).

The spelling of 212023345 in words is "two hundred twelve million, twenty-three thousand, three hundred forty-five".