12654571 has 2 divisors, whose sum is σ = 12654572. Its totient is φ = 12654570.

The previous prime is 12654563. The next prime is 12654583. The reversal of 12654571 is 17545621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12654571 - 2³ = 12654563 is a prime.

It is not a weakly prime, because it can be changed into another prime (12654371) 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 as a sum of consecutive naturals, namely, 6327285 + 6327286.

It is an arithmetic number, because the mean of its divisors is an integer number (6327286).

Almost surely, 2^12654571 is an apocalyptic number.

12654571 is a deficient number, since it is larger than the sum of its proper divisors (1).

12654571 is an equidigital number, since it uses as much as digits as its factorization.

12654571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 31.

The square root of 12654571 is about 3557.3263836764. The cubic root of 12654571 is about 233.0321322199.

It can be divided in two parts, 12654 and 571, that added together give a square (13225 = 115²).

The spelling of 12654571 in words is "twelve million, six hundred fifty-four thousand, five hundred seventy-one".