212349233 has 2 divisors, whose sum is σ = 212349234. Its totient is φ = 212349232.

The previous prime is 212349211. The next prime is 212349239. The reversal of 212349233 is 332943212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189805729 + 22543504 = 13777^2 + 4748^2 .

It is a cyclic number.

It is not a de Polignac number, because 212349233 - 2⁶ = 212349169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212349196 and 212349205.

It is not a weakly prime, because it can be changed into another prime (212349239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106174616 + 106174617.

It is an arithmetic number, because the mean of its divisors is an integer number (106174617).

Almost surely, 2^212349233 is an apocalyptic number.

It is an amenable number.

212349233 is a deficient number, since it is larger than the sum of its proper divisors (1).

212349233 is an equidigital number, since it uses as much as digits as its factorization.

212349233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 212349233 is about 14572.2075541079. The cubic root of 212349233 is about 596.6004348249.

The spelling of 212349233 in words is "two hundred twelve million, three hundred forty-nine thousand, two hundred thirty-three".