173321441 has 2 divisors, whose sum is σ = 173321442. Its totient is φ = 173321440.

The previous prime is 173321413. The next prime is 173321453. The reversal of 173321441 is 144123371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117505600 + 55815841 = 10840^2 + 7471^2 .

It is a cyclic number.

It is not a de Polignac number, because 173321441 - 2⁶ = 173321377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 173321441.

It is not a weakly prime, because it can be changed into another prime (173321411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86660720 + 86660721.

It is an arithmetic number, because the mean of its divisors is an integer number (86660721).

Almost surely, 2^173321441 is an apocalyptic number.

It is an amenable number.

173321441 is a deficient number, since it is larger than the sum of its proper divisors (1).

173321441 is an equidigital number, since it uses as much as digits as its factorization.

173321441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 173321441 is about 13165.1601205606. The cubic root of 173321441 is about 557.5503554695.

The spelling of 173321441 in words is "one hundred seventy-three million, three hundred twenty-one thousand, four hundred forty-one".