12634549 has 4 divisors (see below), whose sum is σ = 12794560. Its totient is φ = 12474540.

The previous prime is 12634547. The next prime is 12634571. The reversal of 12634549 is 94543621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94543621 = 37 ⋅2555233.

It is a cyclic number.

It is not a de Polignac number, because 12634549 - 2¹ = 12634547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12634547) 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, 79887 + ... + 80044.

It is an arithmetic number, because the mean of its divisors is an integer number (3198640).

Almost surely, 2^12634549 is an apocalyptic number.

It is an amenable number.

12634549 is a deficient number, since it is larger than the sum of its proper divisors (160011).

12634549 is an equidigital number, since it uses as much as digits as its factorization.

12634549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160010.

The product of its digits is 25920, while the sum is 34.

The square root of 12634549 is about 3554.5110774901. The cubic root of 12634549 is about 232.9091665807.

The spelling of 12634549 in words is "twelve million, six hundred thirty-four thousand, five hundred forty-nine".