172485272 has 32 divisors (see below), whose sum is σ = 335340000. Its totient is φ = 83075328.

The previous prime is 172485251. The next prime is 172485277. The reversal of 172485272 is 272584271.

172485272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172485277) 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, 187229 + ... + 188147.

It is an arithmetic number, because the mean of its divisors is an integer number (10479375).

Almost surely, 2^172485272 is an apocalyptic number.

It is an amenable number.

172485272 is a deficient number, since it is larger than the sum of its proper divisors (162854728).

172485272 is a wasteful number, since it uses less digits than its factorization.

172485272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763 (or 1759 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The square root of 172485272 is about 13133.3648392177. The cubic root of 172485272 is about 556.6522975881.

The spelling of 172485272 in words is "one hundred seventy-two million, four hundred eighty-five thousand, two hundred seventy-two".