123207173 has 8 divisors (see below), whose sum is σ = 127466136. Its totient is φ = 119008000.

The previous prime is 123207103. The next prime is 123207179. The reversal of 123207173 is 371702321.

It can be written as a sum of positive squares in 4 ways, for example, as 53684929 + 69522244 = 7327^2 + 8338^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123207173 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 (123207179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10736 + ... + 19017.

It is an arithmetic number, because the mean of its divisors is an integer number (15933267).

Almost surely, 2^123207173 is an apocalyptic number.

It is an amenable number.

123207173 is a deficient number, since it is larger than the sum of its proper divisors (4258963).

123207173 is a wasteful number, since it uses less digits than its factorization.

123207173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29895.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 123207173 is about 11099.8726569272. The cubic root of 123207173 is about 497.5980436889.

Adding to 123207173 its reverse (371702321), we get a palindrome (494909494).

The spelling of 123207173 in words is "one hundred twenty-three million, two hundred seven thousand, one hundred seventy-three".