12173501 has 2 divisors, whose sum is σ = 12173502. Its totient is φ = 12173500.

The previous prime is 12173489. The next prime is 12173503. The reversal of 12173501 is 10537121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10896601 + 1276900 = 3301^2 + 1130^2 .

It is a cyclic number.

It is not a de Polignac number, because 12173501 - 2¹⁰ = 12172477 is a prime.

Together with 12173503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12173503) 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 as a sum of consecutive naturals, namely, 6086750 + 6086751.

It is an arithmetic number, because the mean of its divisors is an integer number (6086751).

Almost surely, 2^12173501 is an apocalyptic number.

It is an amenable number.

12173501 is a deficient number, since it is larger than the sum of its proper divisors (1).

12173501 is an equidigital number, since it uses as much as digits as its factorization.

12173501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 12173501 is about 3489.0544564395. The cubic root of 12173501 is about 230.0409567894.

The spelling of 12173501 in words is "twelve million, one hundred seventy-three thousand, five hundred one".