225045121 has 8 divisors (see below), whose sum is σ = 260293824. Its totient is φ = 190571280.

The previous prime is 225045113. The next prime is 225045127. The reversal of 225045121 is 121540522.

225045121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 225045121 - 2³ = 225045113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225045092 and 225045101.

It is not an unprimeable number, because it can be changed into a prime (225045127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193090 + ... + 194251.

It is an arithmetic number, because the mean of its divisors is an integer number (32536728).

Almost surely, 2^225045121 is an apocalyptic number.

It is an amenable number.

225045121 is a deficient number, since it is larger than the sum of its proper divisors (35248703).

225045121 is an equidigital number, since it uses as much as digits as its factorization.

225045121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387431.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 225045121 is about 15001.5039579370. The cubic root of 225045121 is about 608.2608538823.

Adding to 225045121 its reverse (121540522), we get a palindrome (346585643).

The spelling of 225045121 in words is "two hundred twenty-five million, forty-five thousand, one hundred twenty-one".