172134 has 24 divisors (see below), whose sum is σ = 380952. Its totient is φ = 56160.

The previous prime is 172127. The next prime is 172147. The reversal of 172134 is 431271.

It is a super-2 number, since 2×172134² = 59260227912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1249 + ... + 1379.

It is an arithmetic number, because the mean of its divisors is an integer number (15873).

2¹⁷²¹³⁴ is an apocalyptic number.

172134 is an abundant number, since it is smaller than the sum of its proper divisors (208818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172134 is a wasteful number, since it uses less digits than its factorization.

172134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 209 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 172134 is about 414.8903469593. The cubic root of 172134 is about 55.6274160462.

The spelling of 172134 in words is "one hundred seventy-two thousand, one hundred thirty-four".