12905075 has 12 divisors (see below), whose sum is σ = 16055520. Its totient is φ = 10289760.

The previous prime is 12905063. The next prime is 12905077. The reversal of 12905075 is 57050921.

It is not a de Polignac number, because 12905075 - 2²² = 8710771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12905077) 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 11 ways as a sum of consecutive naturals, for example, 9062 + ... + 10388.

It is an arithmetic number, because the mean of its divisors is an integer number (1337960).

Almost surely, 2^12905075 is an apocalyptic number.

12905075 is a deficient number, since it is larger than the sum of its proper divisors (3150445).

12905075 is a wasteful number, since it uses less digits than its factorization.

12905075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726 (or 1721 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 12905075 is about 3592.3634281626. The cubic root of 12905075 is about 234.5597612746.

Adding to 12905075 its reverse (57050921), we get a palindrome (69955996).

The spelling of 12905075 in words is "twelve million, nine hundred five thousand, seventy-five".