12905311 has 2 divisors, whose sum is σ = 12905312. Its totient is φ = 12905310.

The previous prime is 12905287. The next prime is 12905381. The reversal of 12905311 is 11350921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12905311 - 2⁷ = 12905183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12905381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6452655 + 6452656.

It is an arithmetic number, because the mean of its divisors is an integer number (6452656).

Almost surely, 2^12905311 is an apocalyptic number.

12905311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12905311 is an equidigital number, since it uses as much as digits as its factorization.

12905311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 12905311 is about 3592.3962754685. The cubic root of 12905311 is about 234.5611910937.

The spelling of 12905311 in words is "twelve million, nine hundred five thousand, three hundred eleven".