12596491 has 2 divisors, whose sum is σ = 12596492. Its totient is φ = 12596490.

The previous prime is 12596483. The next prime is 12596497. The reversal of 12596491 is 19469521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12596491 - 2³ = 12596483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12596491.

It is not a weakly prime, because it can be changed into another prime (12596497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6298245 + 6298246.

It is an arithmetic number, because the mean of its divisors is an integer number (6298246).

Almost surely, 2^12596491 is an apocalyptic number.

12596491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12596491 is an equidigital number, since it uses as much as digits as its factorization.

12596491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 37.

The square root of 12596491 is about 3549.1535610621. The cubic root of 12596491 is about 232.6750737469.

It can be divided in two parts, 1259 and 6491, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 12596491 in words is "twelve million, five hundred ninety-six thousand, four hundred ninety-one".