225112451 has 2 divisors, whose sum is σ = 225112452. Its totient is φ = 225112450.

The previous prime is 225112441. The next prime is 225112457. The reversal of 225112451 is 154211522.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225112451 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (225112457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112556225 + 112556226.

It is an arithmetic number, because the mean of its divisors is an integer number (112556226).

Almost surely, 2^225112451 is an apocalyptic number.

225112451 is a deficient number, since it is larger than the sum of its proper divisors (1).

225112451 is an equidigital number, since it uses as much as digits as its factorization.

225112451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 800, while the sum is 23.

The square root of 225112451 is about 15003.7478984419. The cubic root of 225112451 is about 608.3215085627.

Adding to 225112451 its reverse (154211522), we get a palindrome (379323973).

The spelling of 225112451 in words is "two hundred twenty-five million, one hundred twelve thousand, four hundred fifty-one".