225974039 has 2 divisors, whose sum is σ = 225974040. Its totient is φ = 225974038.

The previous prime is 225973999. The next prime is 225974041. The reversal of 225974039 is 930479522.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225974039 is a prime.

Together with 225974041, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 225973987 and 225974005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225970039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112987019 + 112987020.

It is an arithmetic number, because the mean of its divisors is an integer number (112987020).

Almost surely, 2^225974039 is an apocalyptic number.

225974039 is a deficient number, since it is larger than the sum of its proper divisors (1).

225974039 is an equidigital number, since it uses as much as digits as its factorization.

225974039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 225974039 is about 15032.4329035589. The cubic root of 225974039 is about 609.0966104551.

The spelling of 225974039 in words is "two hundred twenty-five million, nine hundred seventy-four thousand, thirty-nine".