225143361 has 8 divisors (see below), whose sum is σ = 333545760. Its totient is φ = 150095556.

The previous prime is 225143357. The next prime is 225143419. The reversal of 225143361 is 163341522.

225143361 is a `hidden beast` number, since 225 + 1 + 433 + 6 + 1 = 666.

225143361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225143361 - 2² = 225143357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8338643 = 225143361 / (2 + 2 + 5 + 1 + 4 + 3 + 3 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (225143161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4169295 + ... + 4169348.

It is an arithmetic number, because the mean of its divisors is an integer number (41693220).

Almost surely, 2^225143361 is an apocalyptic number.

It is an amenable number.

225143361 is a deficient number, since it is larger than the sum of its proper divisors (108402399).

225143361 is an equidigital number, since it uses as much as digits as its factorization.

225143361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8338652 (or 8338646 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 225143361 is about 15004.7779390433. Note that the first 3 decimals coincide. The cubic root of 225143361 is about 608.3493499922.

Adding to 225143361 its reverse (163341522), we get a palindrome (388484883).

The spelling of 225143361 in words is "two hundred twenty-five million, one hundred forty-three thousand, three hundred sixty-one".