172104188 has 24 divisors (see below), whose sum is σ = 312797184. Its totient is φ = 82767600.

The previous prime is 172104187. The next prime is 172104199. The reversal of 172104188 is 881401271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172104181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16553 + ... + 24863.

It is an arithmetic number, because the mean of its divisors is an integer number (13033216).

Almost surely, 2^172104188 is an apocalyptic number.

It is an amenable number.

172104188 is a deficient number, since it is larger than the sum of its proper divisors (140692996).

172104188 is a wasteful number, since it uses less digits than its factorization.

172104188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8513 (or 8511 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 172104188 is about 13118.8485775239. The cubic root of 172104188 is about 556.2420447796.

The spelling of 172104188 in words is "one hundred seventy-two million, one hundred four thousand, one hundred eighty-eight".