173055381 has 8 divisors (see below), whose sum is σ = 240772800. Its totient is φ = 110354112.

The previous prime is 173055373. The next prime is 173055403. The reversal of 173055381 is 183550371.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 173055381 - 2³ = 173055373 is a prime.

It is a super-2 number, since 2×173055381² = 59896329786110322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173055331) 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 in 7 ways as a sum of consecutive naturals, for example, 1253956 + ... + 1254093.

It is an arithmetic number, because the mean of its divisors is an integer number (30096600).

Almost surely, 2^173055381 is an apocalyptic number.

It is an amenable number.

173055381 is a deficient number, since it is larger than the sum of its proper divisors (67717419).

173055381 is a wasteful number, since it uses less digits than its factorization.

173055381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508075.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 173055381 is about 13155.0515392377. The cubic root of 173055381 is about 557.2649170064.

The spelling of 173055381 in words is "one hundred seventy-three million, fifty-five thousand, three hundred eighty-one".