172227249 has 8 divisors (see below), whose sum is σ = 255151520. Its totient is φ = 114818148.

The previous prime is 172227239. The next prime is 172227277. The reversal of 172227249 is 942722271.

It is not a de Polignac number, because 172227249 - 2⁴ = 172227233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (172227239) 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, 3189367 + ... + 3189420.

It is an arithmetic number, because the mean of its divisors is an integer number (31893940).

Almost surely, 2^172227249 is an apocalyptic number.

It is an amenable number.

172227249 is a deficient number, since it is larger than the sum of its proper divisors (82924271).

172227249 is an equidigital number, since it uses as much as digits as its factorization.

172227249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378796 (or 6378790 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 172227249 is about 13123.5379757137. The cubic root of 172227249 is about 556.3745912220.

The spelling of 172227249 in words is "one hundred seventy-two million, two hundred twenty-seven thousand, two hundred forty-nine".