213545224 has 16 divisors (see below), whose sum is σ = 409709520. Its totient is φ = 104289360.

The previous prime is 213545203. The next prime is 213545231. The reversal of 213545224 is 422545312.

It is a junction number, because it is equal to n+sod(n) for n = 213545192 and 213545201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310042 + ... + 310729.

It is an arithmetic number, because the mean of its divisors is an integer number (25606845).

Almost surely, 2^213545224 is an apocalyptic number.

It is an amenable number.

213545224 is a deficient number, since it is larger than the sum of its proper divisors (196164296).

213545224 is a wasteful number, since it uses less digits than its factorization.

213545224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620820 (or 620816 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 213545224 is about 14613.1866476823. The cubic root of 213545224 is about 597.7183940473.

The spelling of 213545224 in words is "two hundred thirteen million, five hundred forty-five thousand, two hundred twenty-four".