173989141 has 4 divisors (see below), whose sum is σ = 176841484. Its totient is φ = 171136800.

The previous prime is 173989129. The next prime is 173989163. The reversal of 173989141 is 141989371.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141989371 = 911 ⋅155861.

It can be written as a sum of positive squares in 2 ways, for example, as 80460900 + 93528241 = 8970^2 + 9671^2 .

It is a cyclic number.

It is not a de Polignac number, because 173989141 - 2¹³ = 173980949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173984141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426080 + ... + 1426201.

It is an arithmetic number, because the mean of its divisors is an integer number (44210371).

Almost surely, 2^173989141 is an apocalyptic number.

It is an amenable number.

173989141 is a deficient number, since it is larger than the sum of its proper divisors (2852343).

173989141 is an equidigital number, since it uses as much as digits as its factorization.

173989141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852342.

The product of its digits is 54432, while the sum is 43.

The square root of 173989141 is about 13190.4943425180. The cubic root of 173989141 is about 558.2654032650.

The spelling of 173989141 in words is "one hundred seventy-three million, nine hundred eighty-nine thousand, one hundred forty-one".