12963945 has 16 divisors (see below), whose sum is σ = 21962880. Its totient is φ = 6507264.

The previous prime is 12963943. The next prime is 12963967. The reversal of 12963945 is 54936921.

12963945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12963945 - 2¹ = 12963943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12963943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25165 + ... + 25674.

It is an arithmetic number, because the mean of its divisors is an integer number (1372680).

Almost surely, 2^12963945 is an apocalyptic number.

12963945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12963945 is a deficient number, since it is larger than the sum of its proper divisors (8998935).

12963945 is a wasteful number, since it uses less digits than its factorization.

12963945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50864.

The product of its digits is 58320, while the sum is 39.

The square root of 12963945 is about 3600.5478749768. The cubic root of 12963945 is about 234.9158896214.

The spelling of 12963945 in words is "twelve million, nine hundred sixty-three thousand, nine hundred forty-five".