225111729 has 8 divisors (see below), whose sum is σ = 303121152. Its totient is φ = 148588400.

The previous prime is 225111721. The next prime is 225111743. The reversal of 225111729 is 927111522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225111729 - 2³ = 225111721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225111696 and 225111705.

It is not an unprimeable number, because it can be changed into a prime (225111721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371169 + ... + 371774.

It is an arithmetic number, because the mean of its divisors is an integer number (37890144).

Almost surely, 2^225111729 is an apocalyptic number.

It is an amenable number.

225111729 is a deficient number, since it is larger than the sum of its proper divisors (78009423).

225111729 is a wasteful number, since it uses less digits than its factorization.

225111729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743047.

The product of its digits is 2520, while the sum is 30.

The square root of 225111729 is about 15003.7238377677. The cubic root of 225111729 is about 608.3208582083.

The spelling of 225111729 in words is "two hundred twenty-five million, one hundred eleven thousand, seven hundred twenty-nine".