213573522 has 8 divisors (see below), whose sum is σ = 427147056. Its totient is φ = 71191172.

The previous prime is 213573511. The next prime is 213573527. The reversal of 213573522 is 225375312.

It is a happy number.

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

213573522 is an admirable number.

It is a super-2 number, since 2×213573522² = 91227298598968968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213573522.

It is not an unprimeable number, because it can be changed into a prime (213573527) 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 3 ways as a sum of consecutive naturals, for example, 17797788 + ... + 17797799.

It is an arithmetic number, because the mean of its divisors is an integer number (53393382).

Almost surely, 2^213573522 is an apocalyptic number.

213573522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

213573522 is a wasteful number, since it uses less digits than its factorization.

213573522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35595592.

The product of its digits is 12600, while the sum is 30.

The square root of 213573522 is about 14614.1548506918. The cubic root of 213573522 is about 597.7447951498.

It can be divided in two parts, 2135 and 73522, that added together give a palindrome (75657).

The spelling of 213573522 in words is "two hundred thirteen million, five hundred seventy-three thousand, five hundred twenty-two".