172752233 has 4 divisors (see below), whose sum is σ = 172879428. Its totient is φ = 172625040.

The previous prime is 172752211. The next prime is 172752263. The reversal of 172752233 is 332257271.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127418944 + 45333289 = 11288^2 + 6733^2 .

It is a cyclic number.

It is not a de Polignac number, because 172752233 - 2⁶ = 172752169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172752233.

It is not an unprimeable number, because it can be changed into a prime (172752263) 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 3 ways as a sum of consecutive naturals, for example, 61538 + ... + 64283.

It is an arithmetic number, because the mean of its divisors is an integer number (43219857).

Almost surely, 2^172752233 is an apocalyptic number.

It is an amenable number.

172752233 is a deficient number, since it is larger than the sum of its proper divisors (127195).

172752233 is a wasteful number, since it uses less digits than its factorization.

172752233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127194.

The product of its digits is 17640, while the sum is 32.

The square root of 172752233 is about 13143.5243751438. The cubic root of 172752233 is about 556.9393324394.

The spelling of 172752233 in words is "one hundred seventy-two million, seven hundred fifty-two thousand, two hundred thirty-three".