225131208 has 16 divisors (see below), whose sum is σ = 562828080. Its totient is φ = 75043728.

The previous prime is 225131201. The next prime is 225131213. The reversal of 225131208 is 802131522.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 9380467 = 225131208 / (2 + 2 + 5 + 1 + 3 + 1 + 2 + 0 + 8).

It is not an unprimeable number, because it can be changed into a prime (225131201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4690210 + ... + 4690257.

It is an arithmetic number, because the mean of its divisors is an integer number (35176755).

Almost surely, 2^225131208 is an apocalyptic number.

It is an amenable number.

225131208 is an abundant number, since it is smaller than the sum of its proper divisors (337696872).

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

225131208 is a wasteful number, since it uses less digits than its factorization.

225131208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9380476 (or 9380472 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 225131208 is about 15004.3729625733. The cubic root of 225131208 is about 608.3384037775.

The spelling of 225131208 in words is "two hundred twenty-five million, one hundred thirty-one thousand, two hundred eight".