12540799 has 2 divisors, whose sum is σ = 12540800. Its totient is φ = 12540798.

The previous prime is 12540797. The next prime is 12540809. The reversal of 12540799 is 99704521.

12540799 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12540799 - 2¹ = 12540797 is a prime.

Together with 12540797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12540791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6270399 + 6270400.

It is an arithmetic number, because the mean of its divisors is an integer number (6270400).

Almost surely, 2^12540799 is an apocalyptic number.

12540799 is a deficient number, since it is larger than the sum of its proper divisors (1).

12540799 is an equidigital number, since it uses as much as digits as its factorization.

12540799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 12540799 is about 3541.2990554315. The cubic root of 12540799 is about 232.3316637123.

The spelling of 12540799 in words is "twelve million, five hundred forty thousand, seven hundred ninety-nine".