172494 has 36 divisors (see below), whose sum is σ = 438984. Its totient is φ = 47952.

The previous prime is 172489. The next prime is 172507. The reversal of 172494 is 494271.

It is a happy number.

172494 is a `hidden beast` number, since 172 + 494 = 666.

172494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

172494 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4644 + ... + 4680.

It is an arithmetic number, because the mean of its divisors is an integer number (12194).

2¹⁷²⁴⁹⁴ is an apocalyptic number.

172494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 172494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219492).

172494 is an abundant number, since it is smaller than the sum of its proper divisors (266490).

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

172494 is a wasteful number, since it uses less digits than its factorization.

172494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 49 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 172494 is about 415.3239699319. The cubic root of 172494 is about 55.6661686562. Note that the first 3 decimals are identical.

Multiplying 172494 by its product of digits (2016), we get a square (347747904 = 18648²).

It can be divided in two parts, 172 and 494, that added together give a palindrome (666).

The spelling of 172494 in words is "one hundred seventy-two thousand, four hundred ninety-four".