172124 has 12 divisors (see below), whose sum is σ = 309624. Its totient is φ = 83664.

The previous prime is 172097. The next prime is 172127. The reversal of 172124 is 421271.

172124 is nontrivially palindromic in base 12.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172127) by changing a digit.

172124 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 434 + ... + 729.

It is an arithmetic number, because the mean of its divisors is an integer number (25802).

2¹⁷²¹²⁴ is an apocalyptic number.

It is an amenable number.

172124 is a deficient number, since it is larger than the sum of its proper divisors (137500).

172124 is a wasteful number, since it uses less digits than its factorization.

172124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204 (or 1202 counting only the distinct ones).

The product of its digits is 112, while the sum is 17.

The square root of 172124 is about 414.8782954072. The cubic root of 172124 is about 55.6263388139.

Adding to 172124 its reverse (421271), we get a palindrome (593395).

The spelling of 172124 in words is "one hundred seventy-two thousand, one hundred twenty-four", and thus it is an iban number.