173172841 has 2 divisors, whose sum is σ = 173172842. Its totient is φ = 173172840.

The previous prime is 173172803. The next prime is 173172869. The reversal of 173172841 is 148271371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112784400 + 60388441 = 10620^2 + 7771^2 .

It is a cyclic number.

It is not a de Polignac number, because 173172841 - 2¹⁷ = 173041769 is a prime.

It is a super-2 number, since 2×173172841² = 59977665720022562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 173172797 and 173172806.

It is not a weakly prime, because it can be changed into another prime (173179841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86586420 + 86586421.

It is an arithmetic number, because the mean of its divisors is an integer number (86586421).

Almost surely, 2^173172841 is an apocalyptic number.

It is an amenable number.

173172841 is a deficient number, since it is larger than the sum of its proper divisors (1).

173172841 is an equidigital number, since it uses as much as digits as its factorization.

173172841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 34.

The square root of 173172841 is about 13159.5152266335. The cubic root of 173172841 is about 557.3909682412.

The spelling of 173172841 in words is "one hundred seventy-three million, one hundred seventy-two thousand, eight hundred forty-one".