225133151 has 4 divisors (see below), whose sum is σ = 225371832. Its totient is φ = 224894472.

The previous prime is 225133099. The next prime is 225133171. The reversal of 225133151 is 151331522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225133151 - 2⁶ = 225133087 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 (225133171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117920 + ... + 119813.

It is an arithmetic number, because the mean of its divisors is an integer number (56342958).

Almost surely, 2^225133151 is an apocalyptic number.

225133151 is a deficient number, since it is larger than the sum of its proper divisors (238681).

225133151 is an equidigital number, since it uses as much as digits as its factorization.

225133151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238680.

The product of its digits is 900, while the sum is 23.

The square root of 225133151 is about 15004.4377102243. The cubic root of 225133151 is about 608.3401538653.

Adding to 225133151 its reverse (151331522), we get a palindrome (376464673).

The spelling of 225133151 in words is "two hundred twenty-five million, one hundred thirty-three thousand, one hundred fifty-one".