173056139 has 8 divisors (see below), whose sum is σ = 176616000. Its totient is φ = 169532352.

The previous prime is 173056111. The next prime is 173056153. The reversal of 173056139 is 931650371.

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

It is a cyclic number.

It is not a de Polignac number, because 173056139 - 2¹² = 173052043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 173056099 and 173056108.

It is not an unprimeable number, because it can be changed into a prime (173050139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782 + ... + 18620.

It is an arithmetic number, because the mean of its divisors is an integer number (22077000).

Almost surely, 2^173056139 is an apocalyptic number.

173056139 is a deficient number, since it is larger than the sum of its proper divisors (3559861).

173056139 is a wasteful number, since it uses less digits than its factorization.

173056139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18037.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 173056139 is about 13155.0803494315. The cubic root of 173056139 is about 557.2657306307.

The spelling of 173056139 in words is "one hundred seventy-three million, fifty-six thousand, one hundred thirty-nine".