12630749 has 4 divisors (see below), whose sum is σ = 13179936. Its totient is φ = 12081564.

The previous prime is 12630743. The next prime is 12630767. The reversal of 12630749 is 94703621.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12630749 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 (12630743) 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 in 3 ways as a sum of consecutive naturals, for example, 274559 + ... + 274604.

It is an arithmetic number, because the mean of its divisors is an integer number (3294984).

Almost surely, 2^12630749 is an apocalyptic number.

It is an amenable number.

12630749 is a deficient number, since it is larger than the sum of its proper divisors (549187).

12630749 is an equidigital number, since it uses as much as digits as its factorization.

12630749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549186.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 12630749 is about 3553.9765052684. The cubic root of 12630749 is about 232.8858141160.

The spelling of 12630749 in words is "twelve million, six hundred thirty thousand, seven hundred forty-nine".