12749349 has 8 divisors (see below), whose sum is σ = 17458720. Its totient is φ = 8269776.

The previous prime is 12749327. The next prime is 12749353. The reversal of 12749349 is 94394721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12749349 - 2⁹ = 12748837 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 (12749449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57319 + ... + 57540.

It is an arithmetic number, because the mean of its divisors is an integer number (2182340).

Almost surely, 2^12749349 is an apocalyptic number.

It is an amenable number.

12749349 is a deficient number, since it is larger than the sum of its proper divisors (4709371).

12749349 is a wasteful number, since it uses less digits than its factorization.

12749349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114899.

The product of its digits is 54432, while the sum is 39.

The square root of 12749349 is about 3570.6230548743. The cubic root of 12749349 is about 233.6124602900.

The spelling of 12749349 in words is "twelve million, seven hundred forty-nine thousand, three hundred forty-nine".