164253225 has 12 divisors (see below), whose sum is σ = 271565456. Its totient is φ = 87601680.

The previous prime is 164253197. The next prime is 164253241. The reversal of 164253225 is 522352461.

It is not a de Polignac number, because 164253225 - 2⁸ = 164252969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164253192 and 164253201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1094947 + ... + 1095096.

Almost surely, 2^164253225 is an apocalyptic number.

164253225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164253225 is a deficient number, since it is larger than the sum of its proper divisors (107312231).

164253225 is a wasteful number, since it uses less digits than its factorization.

164253225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190056 (or 2190051 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 164253225 is about 12816.1314365919. The cubic root of 164253225 is about 547.6519459007.

The spelling of 164253225 in words is "one hundred sixty-four million, two hundred fifty-three thousand, two hundred twenty-five".