213335450 has 12 divisors (see below), whose sum is σ = 396804030. Its totient is φ = 85334160.

The previous prime is 213335417. The next prime is 213335453. The reversal of 213335450 is 54533312.

It can be written as a sum of positive squares in 3 ways, for example, as 154828249 + 58507201 = 12443^2 + 7649^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213335453) 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 in 5 ways as a sum of consecutive naturals, for example, 2133305 + ... + 2133404.

Almost surely, 2^213335450 is an apocalyptic number.

213335450 is a deficient number, since it is larger than the sum of its proper divisors (183468580).

213335450 is a wasteful number, since it uses less digits than its factorization.

213335450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266721 (or 4266716 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 213335450 is about 14606.0073257547. The cubic root of 213335450 is about 597.5226090428.

Adding to 213335450 its reverse (54533312), we get a palindrome (267868762).

The spelling of 213335450 in words is "two hundred thirteen million, three hundred thirty-five thousand, four hundred fifty".