12492749 has 4 divisors (see below), whose sum is σ = 13035936. Its totient is φ = 11949564.

The previous prime is 12492743. The next prime is 12492787. The reversal of 12492749 is 94729421.

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 not a de Polignac number, because 12492749 - 2¹⁶ = 12427213 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 (12492743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271559 + ... + 271604.

It is an arithmetic number, because the mean of its divisors is an integer number (3258984).

Almost surely, 2^12492749 is an apocalyptic number.

It is an amenable number.

12492749 is a deficient number, since it is larger than the sum of its proper divisors (543187).

12492749 is an equidigital number, since it uses as much as digits as its factorization.

12492749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543186.

The product of its digits is 36288, while the sum is 38.

The square root of 12492749 is about 3534.5083109253. The cubic root of 12492749 is about 232.0345581200.

The spelling of 12492749 in words is "twelve million, four hundred ninety-two thousand, seven hundred forty-nine".