12959109 has 20 divisors (see below), whose sum is σ = 19514880. Its totient is φ = 8569800.

The previous prime is 12959099. The next prime is 12959123. The reversal of 12959109 is 90195921.

It is not a de Polignac number, because 12959109 - 2⁵ = 12959077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12959129) 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 19 ways as a sum of consecutive naturals, for example, 10684 + ... + 11834.

It is an arithmetic number, because the mean of its divisors is an integer number (975744).

Almost surely, 2^12959109 is an apocalyptic number.

It is an amenable number.

12959109 is a deficient number, since it is larger than the sum of its proper divisors (6555771).

12959109 is a wasteful number, since it uses less digits than its factorization.

12959109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302 (or 1293 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 36.

The square root of 12959109 is about 3599.8762478730. The cubic root of 12959109 is about 234.8866754038.

It can be divided in two parts, 1295 and 9109, that added together give a square (10404 = 102²).

The spelling of 12959109 in words is "twelve million, nine hundred fifty-nine thousand, one hundred nine".