172041 has 4 divisors (see below), whose sum is σ = 229392. Its totient is φ = 114692.

The previous prime is 172031. The next prime is 172049. The reversal of 172041 is 140271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 140271 = 3 ⋅46757.

It is a cyclic number.

It is not a de Polignac number, because 172041 - 2⁵ = 172009 is a prime.

It is a D-number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 172041.

It is not an unprimeable number, because it can be changed into a prime (172049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28671 + ... + 28676.

It is an arithmetic number, because the mean of its divisors is an integer number (57348).

2¹⁷²⁰⁴¹ is an apocalyptic number.

It is an amenable number.

172041 is a deficient number, since it is larger than the sum of its proper divisors (57351).

172041 is an equidigital number, since it uses as much as digits as its factorization.

172041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57350.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 172041 is about 414.7782540105. The cubic root of 172041 is about 55.6173961748.

It can be divided in two parts, 17204 and 1, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 172041 in words is "one hundred seventy-two thousand, forty-one", and thus it is an iban number.