12905001 has 24 divisors (see below), whose sum is σ = 20180160. Its totient is φ = 8225712.

The previous prime is 12904993. The next prime is 12905003. The reversal of 12905001 is 10050921.

It is not a de Polignac number, because 12905001 - 2³ = 12904993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12905003) 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 23 ways as a sum of consecutive naturals, for example, 4435 + ... + 6743.

It is an arithmetic number, because the mean of its divisors is an integer number (840840).

Almost surely, 2^12905001 is an apocalyptic number.

It is an amenable number.

12905001 is a deficient number, since it is larger than the sum of its proper divisors (7275159).

12905001 is an equidigital number, since it uses as much as digits as its factorization.

12905001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347 (or 2335 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 12905001 is about 3592.3531285217. The cubic root of 12905001 is about 234.5593129380.

Adding to 12905001 its reverse (10050921), we get a palindrome (22955922).

The spelling of 12905001 in words is "twelve million, nine hundred five thousand, one".