212946343 has 2 divisors, whose sum is σ = 212946344. Its totient is φ = 212946342.

The previous prime is 212946341. The next prime is 212946401. The reversal of 212946343 is 343649212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212946343 - 2¹ = 212946341 is a prime.

It is a super-2 number, since 2×212946343² = 90692289994147298, which contains 22 as substring.

Together with 212946341, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 212946299 and 212946308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212946341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106473171 + 106473172.

It is an arithmetic number, because the mean of its divisors is an integer number (106473172).

Almost surely, 2^212946343 is an apocalyptic number.

212946343 is a deficient number, since it is larger than the sum of its proper divisors (1).

212946343 is an equidigital number, since it uses as much as digits as its factorization.

212946343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 34.

The square root of 212946343 is about 14592.6811450124. The cubic root of 212946343 is about 597.1591099505.

The spelling of 212946343 in words is "two hundred twelve million, nine hundred forty-six thousand, three hundred forty-three".