12582991 has 2 divisors, whose sum is σ = 12582992. Its totient is φ = 12582990.

The previous prime is 12582971. The next prime is 12583003. The reversal of 12582991 is 19928521.

It is a strong prime.

It is an emirp because it is prime and its reverse (19928521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12582991 - 2¹¹ = 12580943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12582991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12582971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6291495 + 6291496.

It is an arithmetic number, because the mean of its divisors is an integer number (6291496).

Almost surely, 2^12582991 is an apocalyptic number.

12582991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12582991 is an equidigital number, since it uses as much as digits as its factorization.

12582991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 37.

The square root of 12582991 is about 3547.2511893014. The cubic root of 12582991 is about 232.5919226454.

The spelling of 12582991 in words is "twelve million, five hundred eighty-two thousand, nine hundred ninety-one".