12173290 has 8 divisors (see below), whose sum is σ = 21911940. Its totient is φ = 4869312.

The previous prime is 12173263. The next prime is 12173299. The reversal of 12173290 is 9237121.

It can be written as a sum of positive squares in 2 ways, for example, as 12173121 + 169 = 3489^2 + 13^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12173299) 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 3 ways as a sum of consecutive naturals, for example, 608655 + ... + 608674.

Almost surely, 2^12173290 is an apocalyptic number.

12173290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12173290 is a deficient number, since it is larger than the sum of its proper divisors (9738650).

12173290 is a wasteful number, since it uses less digits than its factorization.

12173290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217336.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12173290 is about 3489.0242188899. The cubic root of 12173290 is about 230.0396277025.

The spelling of 12173290 in words is "twelve million, one hundred seventy-three thousand, two hundred ninety".