172248085 has 8 divisors (see below), whose sum is σ = 206864856. Its totient is φ = 137687040.

The previous prime is 172248077. The next prime is 172248113. The reversal of 172248085 is 580842271.

It can be written as a sum of positive squares in 4 ways, for example, as 103673124 + 68574961 = 10182^2 + 8281^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172248085 - 2³ = 172248077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6796 + ... + 19765.

It is an arithmetic number, because the mean of its divisors is an integer number (25858107).

Almost surely, 2^172248085 is an apocalyptic number.

It is an amenable number.

172248085 is a deficient number, since it is larger than the sum of its proper divisors (34616771).

172248085 is a wasteful number, since it uses less digits than its factorization.

172248085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27863.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 172248085 is about 13124.3317925142. The cubic root of 172248085 is about 556.3970269934.

The spelling of 172248085 in words is "one hundred seventy-two million, two hundred forty-eight thousand, eighty-five".