212743345 has 8 divisors (see below), whose sum is σ = 257241600. Its totient is φ = 168894960.

The previous prime is 212743343. The next prime is 212743357. The reversal of 212743345 is 543347212.

It is a happy number.

212743345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 212743345 - 2¹ = 212743343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212743343) 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, 161745 + ... + 163054.

It is an arithmetic number, because the mean of its divisors is an integer number (32155200).

Almost surely, 2^212743345 is an apocalyptic number.

It is an amenable number.

212743345 is a deficient number, since it is larger than the sum of its proper divisors (44498255).

212743345 is a wasteful number, since it uses less digits than its factorization.

212743345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324935.

The product of its digits is 20160, while the sum is 31.

The square root of 212743345 is about 14585.7240135689. The cubic root of 212743345 is about 596.9692958666.

The spelling of 212743345 in words is "two hundred twelve million, seven hundred forty-three thousand, three hundred forty-five".