172854 has 40 divisors (see below), whose sum is σ = 426888. Its totient is φ = 51840.

The previous prime is 172853. The next prime is 172859. The reversal of 172854 is 458271.

172854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172853) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1734 + ... + 1830.

2¹⁷²⁸⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213444).

172854 is an abundant number, since it is smaller than the sum of its proper divisors (254034).

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

172854 is a wasteful number, since it uses less digits than its factorization.

172854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 113 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 172854 is about 415.7571406482. The cubic root of 172854 is about 55.7048673851.

The spelling of 172854 in words is "one hundred seventy-two thousand, eight hundred fifty-four".