213433469 has 2 divisors, whose sum is σ = 213433470. Its totient is φ = 213433468.

The previous prime is 213433433. The next prime is 213433483. The reversal of 213433469 is 964334312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199092100 + 14341369 = 14110^2 + 3787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213433469 is a prime.

It is a super-2 number, since 2×213433469² = 91107691378747922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213433499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106716734 + 106716735.

It is an arithmetic number, because the mean of its divisors is an integer number (106716735).

Almost surely, 2^213433469 is an apocalyptic number.

It is an amenable number.

213433469 is a deficient number, since it is larger than the sum of its proper divisors (1).

213433469 is an equidigital number, since it uses as much as digits as its factorization.

213433469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 35.

The square root of 213433469 is about 14609.3623748609. The cubic root of 213433469 is about 597.6141075114.

The spelling of 213433469 in words is "two hundred thirteen million, four hundred thirty-three thousand, four hundred sixty-nine".