225474943 has 2 divisors, whose sum is σ = 225474944. Its totient is φ = 225474942.

The previous prime is 225474941. The next prime is 225474947. The reversal of 225474943 is 349474522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225474943 - 2¹ = 225474941 is a prime.

Together with 225474941, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 225474896 and 225474905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225474941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112737471 + 112737472.

It is an arithmetic number, because the mean of its divisors is an integer number (112737472).

Almost surely, 2^225474943 is an apocalyptic number.

225474943 is a deficient number, since it is larger than the sum of its proper divisors (1).

225474943 is an equidigital number, since it uses as much as digits as its factorization.

225474943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 40.

The square root of 225474943 is about 15015.8230876632. The cubic root of 225474943 is about 608.6478542385.

The spelling of 225474943 in words is "two hundred twenty-five million, four hundred seventy-four thousand, nine hundred forty-three".