172106 has 8 divisors (see below), whose sum is σ = 281664. Its totient is φ = 78220.

The previous prime is 172097. The next prime is 172127. The reversal of 172106 is 601271.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3890 + ... + 3933.

It is an arithmetic number, because the mean of its divisors is an integer number (35208).

2¹⁷²¹⁰⁶ is an apocalyptic number.

172106 is a deficient number, since it is larger than the sum of its proper divisors (109558).

172106 is a wasteful number, since it uses less digits than its factorization.

172106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 172106 is about 414.8566017312. The cubic root of 172106 is about 55.6243996905.

Adding to 172106 its reverse (601271), we get a palindrome (773377).

The spelling of 172106 in words is "one hundred seventy-two thousand, one hundred six".