172441 has 2 divisors, whose sum is σ = 172442. Its totient is φ = 172440.

The previous prime is 172439. The next prime is 172489. The reversal of 172441 is 144271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156816 + 15625 = 396^2 + 125^2 .

It is an emirp because it is prime and its reverse (144271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172441 - 2¹ = 172439 is a prime.

Together with 172439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (172411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86220 + 86221.

It is an arithmetic number, because the mean of its divisors is an integer number (86221).

2¹⁷²⁴⁴¹ is an apocalyptic number.

It is an amenable number.

172441 is a deficient number, since it is larger than the sum of its proper divisors (1).

172441 is an equidigital number, since it uses as much as digits as its factorization.

172441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224, while the sum is 19.

The square root of 172441 is about 415.2601594182. The cubic root of 172441 is about 55.6604667977.

The spelling of 172441 in words is "one hundred seventy-two thousand, four hundred forty-one", and thus it is an iban number.