213133004 has 24 divisors (see below), whose sum is σ = 427865760. Its totient is φ = 90999936.

The previous prime is 213133003. The next prime is 213133007. The reversal of 213133004 is 400331312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213133003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6617 + ... + 21680.

It is an arithmetic number, because the mean of its divisors is an integer number (17827740).

Almost surely, 2^213133004 is an apocalyptic number.

It is an amenable number.

213133004 is an abundant number, since it is smaller than the sum of its proper divisors (214732756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213133004 is a wasteful number, since it uses less digits than its factorization.

213133004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28577 (or 28575 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 213133004 is about 14599.0754501783. The cubic root of 213133004 is about 597.3335416278. Note that the first 3 decimals are identical.

Adding to 213133004 its reverse (400331312), we get a palindrome (613464316).

The spelling of 213133004 in words is "two hundred thirteen million, one hundred thirty-three thousand, four".