225405151 has 6 divisors (see below), whose sum is σ = 237893352. Its totient is φ = 213541380.

The previous prime is 225405143. The next prime is 225405163. The reversal of 225405151 is 151504522.

It is not a de Polignac number, because 225405151 - 2³ = 225405143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225405101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311835 + ... + 312556.

It is an arithmetic number, because the mean of its divisors is an integer number (39648892).

Almost surely, 2^225405151 is an apocalyptic number.

225405151 is a deficient number, since it is larger than the sum of its proper divisors (12488201).

225405151 is an equidigital number, since it uses as much as digits as its factorization.

225405151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624429 (or 624410 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 225405151 is about 15013.4989592700. The cubic root of 225405151 is about 608.5850488346.

Adding to 225405151 its reverse (151504522), we get a palindrome (376909673).

The spelling of 225405151 in words is "two hundred twenty-five million, four hundred five thousand, one hundred fifty-one".