12905771 has 8 divisors (see below), whose sum is σ = 13716864. Its totient is φ = 12100480.

The previous prime is 12905749. The next prime is 12905773. The reversal of 12905771 is 17750921.

12905771 = T₁₃₈ + T₁₃₉ + ... + T₄₃₀.

12905771 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12905771 - 2²² = 8711467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12905773) 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, 3686 + ... + 6276.

It is an arithmetic number, because the mean of its divisors is an integer number (1714608).

Almost surely, 2^12905771 is an apocalyptic number.

12905771 is a deficient number, since it is larger than the sum of its proper divisors (811093).

12905771 is a wasteful number, since it uses less digits than its factorization.

12905771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 12905771 is about 3592.4602990151. The cubic root of 12905771 is about 234.5639779790.

The spelling of 12905771 in words is "twelve million, nine hundred five thousand, seven hundred seventy-one".