12594749 has 4 divisors (see below), whose sum is σ = 12901980. Its totient is φ = 12287520.

The previous prime is 12594719. The next prime is 12594767. The reversal of 12594749 is 94749521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94749521 = 823 ⋅115127.

It can be written as a sum of positive squares in 2 ways, for example, as 2829124 + 9765625 = 1682^2 + 3125^2 .

It is a cyclic number.

It is not a de Polignac number, because 12594749 - 2⁸ = 12594493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 307189 = 12594749 / (1 + 2 + 5 + 9 + 4 + 7 + 4 + 9).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12594719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153554 + ... + 153635.

It is an arithmetic number, because the mean of its divisors is an integer number (3225495).

Almost surely, 2^12594749 is an apocalyptic number.

It is an amenable number.

12594749 is a deficient number, since it is larger than the sum of its proper divisors (307231).

12594749 is an equidigital number, since it uses as much as digits as its factorization.

12594749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307230.

The product of its digits is 90720, while the sum is 41.

The square root of 12594749 is about 3548.9081419501. The cubic root of 12594749 is about 232.6643475146.

The spelling of 12594749 in words is "twelve million, five hundred ninety-four thousand, seven hundred forty-nine".