12745805 has 8 divisors (see below), whose sum is σ = 15788544. Its totient is φ = 9867600.

The previous prime is 12745787. The next prime is 12745807. The reversal of 12745805 is 50854721.

12745805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12745805 - 2⁸ = 12745549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12745807) 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, 40961 + ... + 41270.

It is an arithmetic number, because the mean of its divisors is an integer number (1973568).

Almost surely, 2^12745805 is an apocalyptic number.

It is an amenable number.

12745805 is a deficient number, since it is larger than the sum of its proper divisors (3042739).

12745805 is an equidigital number, since it uses as much as digits as its factorization.

12745805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82267.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 12745805 is about 3570.1267484503. The cubic root of 12745805 is about 233.5908121445.

The spelling of 12745805 in words is "twelve million, seven hundred forty-five thousand, eight hundred five".