173197139 has 8 divisors (see below), whose sum is σ = 184831488. Its totient is φ = 161723520.

The previous prime is 173197127. The next prime is 173197147. The reversal of 173197139 is 931791371.

173197139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 173197139 - 2²⁰ = 172148563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 173197096 and 173197105.

It is not an unprimeable number, because it can be changed into a prime (173197109) 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, 37952 + ... + 42269.

It is an arithmetic number, because the mean of its divisors is an integer number (23103936).

Almost surely, 2^173197139 is an apocalyptic number.

173197139 is a deficient number, since it is larger than the sum of its proper divisors (11634349).

173197139 is a wasteful number, since it uses less digits than its factorization.

173197139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80365.

The product of its digits is 35721, while the sum is 41.

The square root of 173197139 is about 13160.4384045517. The cubic root of 173197139 is about 557.4170363249.

The spelling of 173197139 in words is "one hundred seventy-three million, one hundred ninety-seven thousand, one hundred thirty-nine".