225144210 has 16 divisors (see below), whose sum is σ = 540346176. Its totient is φ = 60038448.

The previous prime is 225144163. The next prime is 225144221. The reversal of 225144210 is 12441522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3752374 + ... + 3752433.

It is an arithmetic number, because the mean of its divisors is an integer number (33771636).

Almost surely, 2^225144210 is an apocalyptic number.

225144210 is an abundant number, since it is smaller than the sum of its proper divisors (315201966).

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

225144210 is a wasteful number, since it uses less digits than its factorization.

225144210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7504817.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 225144210 is about 15004.8062300051. The cubic root of 225144210 is about 608.3501146723.

Adding to 225144210 its reverse (12441522), we get a palindrome (237585732).

The spelling of 225144210 in words is "two hundred twenty-five million, one hundred forty-four thousand, two hundred ten".