213334441 has 2 divisors, whose sum is σ = 213334442. Its totient is φ = 213334440.

The previous prime is 213334423. The next prime is 213334477. The reversal of 213334441 is 144433312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206066025 + 7268416 = 14355^2 + 2696^2 .

It is a cyclic number.

It is not a de Polignac number, because 213334441 - 2⁷ = 213334313 is a prime.

It is not a weakly prime, because it can be changed into another prime (213337441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106667220 + 106667221.

It is an arithmetic number, because the mean of its divisors is an integer number (106667221).

Almost surely, 2^213334441 is an apocalyptic number.

It is an amenable number.

213334441 is a deficient number, since it is larger than the sum of its proper divisors (1).

213334441 is an equidigital number, since it uses as much as digits as its factorization.

213334441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 25.

The square root of 213334441 is about 14605.9727851314. The cubic root of 213334441 is about 597.5216670189.

Adding to 213334441 its reverse (144433312), we get a palindrome (357767753).

The spelling of 213334441 in words is "two hundred thirteen million, three hundred thirty-four thousand, four hundred forty-one".