213225434 has 8 divisors (see below), whose sum is σ = 320171808. Its totient is φ = 106501500.

The previous prime is 213225403. The next prime is 213225437. The reversal of 213225434 is 434522312.

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 (213225437) 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, 53192 + ... + 57059.

It is an arithmetic number, because the mean of its divisors is an integer number (40021476).

Almost surely, 2^213225434 is an apocalyptic number.

213225434 is a deficient number, since it is larger than the sum of its proper divisors (106946374).

213225434 is a wasteful number, since it uses less digits than its factorization.

213225434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111220.

The product of its digits is 5760, while the sum is 26.

The square root of 213225434 is about 14602.2407184651. The cubic root of 213225434 is about 597.4198782641.

Adding to 213225434 its reverse (434522312), we get a palindrome (647747746).

The spelling of 213225434 in words is "two hundred thirteen million, two hundred twenty-five thousand, four hundred thirty-four".