212354347 has 2 divisors, whose sum is σ = 212354348. Its totient is φ = 212354346.

The previous prime is 212354341. The next prime is 212354357. The reversal of 212354347 is 743453212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212354347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212354341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106177173 + 106177174.

It is an arithmetic number, because the mean of its divisors is an integer number (106177174).

Almost surely, 2^212354347 is an apocalyptic number.

212354347 is a deficient number, since it is larger than the sum of its proper divisors (1).

212354347 is an equidigital number, since it uses as much as digits as its factorization.

212354347 is an evil number, because the sum of its binary digits is even.

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

The square root of 212354347 is about 14572.3830240630. The cubic root of 212354347 is about 596.6052240897.

The spelling of 212354347 in words is "two hundred twelve million, three hundred fifty-four thousand, three hundred forty-seven".