213043210 has 8 divisors (see below), whose sum is σ = 383477796. Its totient is φ = 85217280.

The previous prime is 213043189. The next prime is 213043213. The reversal of 213043210 is 12340312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 198274561 + 14768649 = 14081^2 + 3843^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (213043213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10652151 + ... + 10652170.

Almost surely, 2^213043210 is an apocalyptic number.

213043210 is a deficient number, since it is larger than the sum of its proper divisors (170434586).

213043210 is a wasteful number, since it uses less digits than its factorization.

213043210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21304328.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 213043210 is about 14595.9997944642. Note that the first 3 decimals coincide. The cubic root of 213043210 is about 597.2496433088.

Adding to 213043210 its reverse (12340312), we get a palindrome (225383522).

The spelling of 213043210 in words is "two hundred thirteen million, forty-three thousand, two hundred ten".