172230225 has 24 divisors (see below), whose sum is σ = 285130560. Its totient is φ = 91734720.

The previous prime is 172230211. The next prime is 172230251. The reversal of 172230225 is 522032271.

It is a happy number.

It is not a de Polignac number, because 172230225 - 2⁸ = 172229969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172230195 and 172230204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106372 + ... + 107978.

It is an arithmetic number, because the mean of its divisors is an integer number (11880440).

Almost surely, 2^172230225 is an apocalyptic number.

172230225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172230225 is a deficient number, since it is larger than the sum of its proper divisors (112900335).

172230225 is a wasteful number, since it uses less digits than its factorization.

172230225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049 (or 3044 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 172230225 is about 13123.6513592826. The cubic root of 172230225 is about 556.3777958277.

Adding to 172230225 its reverse (522032271), we get a palindrome (694262496).

The spelling of 172230225 in words is "one hundred seventy-two million, two hundred thirty thousand, two hundred twenty-five".