213300433 has 2 divisors, whose sum is σ = 213300434. Its totient is φ = 213300432.

The previous prime is 213300421. The next prime is 213300457. The reversal of 213300433 is 334003312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175748049 + 37552384 = 13257^2 + 6128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213300433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213300433.

It is not a weakly prime, because it can be changed into another prime (213300733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106650216 + 106650217.

It is an arithmetic number, because the mean of its divisors is an integer number (106650217).

Almost surely, 2^213300433 is an apocalyptic number.

It is an amenable number.

213300433 is a deficient number, since it is larger than the sum of its proper divisors (1).

213300433 is an equidigital number, since it uses as much as digits as its factorization.

213300433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 213300433 is about 14604.8085574581. The cubic root of 213300433 is about 597.4899146889.

Adding to 213300433 its reverse (334003312), we get a palindrome (547303745).

The spelling of 213300433 in words is "two hundred thirteen million, three hundred thousand, four hundred thirty-three".