12946845 has 8 divisors (see below), whose sum is σ = 20714976. Its totient is φ = 6904976.

The previous prime is 12946841. The next prime is 12946859. The reversal of 12946845 is 54864921.

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 12946845 - 2² = 12946841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12946841) 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 in 7 ways as a sum of consecutive naturals, for example, 431547 + ... + 431576.

It is an arithmetic number, because the mean of its divisors is an integer number (2589372).

Almost surely, 2^12946845 is an apocalyptic number.

12946845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12946845 is a deficient number, since it is larger than the sum of its proper divisors (7768131).

12946845 is an equidigital number, since it uses as much as digits as its factorization.

12946845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863131.

The product of its digits is 69120, while the sum is 39.

The square root of 12946845 is about 3598.1724527877. The cubic root of 12946845 is about 234.8125561265.

The spelling of 12946845 in words is "twelve million, nine hundred forty-six thousand, eight hundred forty-five".