212314453 has 8 divisors (see below), whose sum is σ = 228879000. Its totient is φ = 195783168.

The previous prime is 212314439. The next prime is 212314471. The reversal of 212314453 is 354413212.

It can be written as a sum of positive squares in 4 ways, for example, as 27952369 + 184362084 = 5287^2 + 13578^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212314453 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 (212314433) 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, 5853 + ... + 21421.

It is an arithmetic number, because the mean of its divisors is an integer number (28609875).

Almost surely, 2^212314453 is an apocalyptic number.

It is an amenable number.

212314453 is a deficient number, since it is larger than the sum of its proper divisors (16564547).

212314453 is a wasteful number, since it uses less digits than its factorization.

212314453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16631.

The product of its digits is 2880, while the sum is 25.

The square root of 212314453 is about 14571.0141376639. The cubic root of 212314453 is about 596.5678612890.

Adding to 212314453 its reverse (354413212), we get a palindrome (566727665).

The spelling of 212314453 in words is "two hundred twelve million, three hundred fourteen thousand, four hundred fifty-three".