12540323 has 8 divisors (see below), whose sum is σ = 13398720. Its totient is φ = 11701800.

The previous prime is 12540317. The next prime is 12540329. The reversal of 12540323 is 32304521.

It is a happy number.

12540323 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12540317) and next prime (12540329).

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 12540323 - 2⁶ = 12540259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12540295 and 12540304.

It is not an unprimeable number, because it can be changed into a prime (12540329) 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, 3653 + ... + 6198.

It is an arithmetic number, because the mean of its divisors is an integer number (1674840).

Almost surely, 2^12540323 is an apocalyptic number.

12540323 is a deficient number, since it is larger than the sum of its proper divisors (858397).

12540323 is an equidigital number, since it uses as much as digits as its factorization.

12540323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9937.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 12540323 is about 3541.2318478179. The cubic root of 12540323 is about 232.3287242060.

Adding to 12540323 its reverse (32304521), we get a palindrome (44844844).

The spelling of 12540323 in words is "twelve million, five hundred forty thousand, three hundred twenty-three".