213433433 has 2 divisors, whose sum is σ = 213433434. Its totient is φ = 213433432.

The previous prime is 213433397. The next prime is 213433469. The reversal of 213433433 is 334334312.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (213433397) and next prime (213433469).

It can be written as a sum of positive squares in only one way, i.e., 212780569 + 652864 = 14587^2 + 808^2 .

It is a cyclic number.

It is not a de Polignac number, because 213433433 - 2⁸ = 213433177 is a prime.

It is not a weakly prime, because it can be changed into another prime (213433483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106716716 + 106716717.

It is an arithmetic number, because the mean of its divisors is an integer number (106716717).

Almost surely, 2^213433433 is an apocalyptic number.

It is an amenable number.

213433433 is a deficient number, since it is larger than the sum of its proper divisors (1).

213433433 is an equidigital number, since it uses as much as digits as its factorization.

213433433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 26.

The square root of 213433433 is about 14609.3611427742. The cubic root of 213433433 is about 597.6140739114.

Adding to 213433433 its reverse (334334312), we get a palindrome (547767745).

The spelling of 213433433 in words is "two hundred thirteen million, four hundred thirty-three thousand, four hundred thirty-three".