652172185 has 16 divisors (see below), whose sum is σ = 915209856. Its totient is φ = 436802688.

The previous prime is 652172161. The next prime is 652172201. The reversal of 652172185 is 581271256.

It is not a de Polignac number, because 652172185 - 2¹¹ = 652170137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215164 + ... + 218173.

It is an arithmetic number, because the mean of its divisors is an integer number (57200616).

Almost surely, 2^652172185 is an apocalyptic number.

It is an amenable number.

652172185 is a deficient number, since it is larger than the sum of its proper divisors (263037671).

652172185 is a wasteful number, since it uses less digits than its factorization.

652172185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433392.

The product of its digits is 33600, while the sum is 37.

The square root of 652172185 is about 25537.6620895492. The cubic root of 652172185 is about 867.2029717241.

The spelling of 652172185 in words is "six hundred fifty-two million, one hundred seventy-two thousand, one hundred eighty-five".