213008530 has 32 divisors (see below), whose sum is σ = 448882560. Its totient is φ = 71249280.

The previous prime is 213008527. The next prime is 213008531. The reversal of 213008530 is 35800312.

It is not an unprimeable number, because it can be changed into a prime (213008531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34240 + ... + 39979.

It is an arithmetic number, because the mean of its divisors is an integer number (14027580).

Almost surely, 2^213008530 is an apocalyptic number.

213008530 is an abundant number, since it is smaller than the sum of its proper divisors (235874030).

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

213008530 is a wasteful number, since it uses less digits than its factorization.

213008530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74274.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 213008530 is about 14594.8117493855. The cubic root of 213008530 is about 597.2172340124.

Adding to 213008530 its reverse (35800312), we get a palindrome (248808842).

The spelling of 213008530 in words is "two hundred thirteen million, eight thousand, five hundred thirty".