12749741 has 4 divisors (see below), whose sum is σ = 13420800. Its totient is φ = 12078684.

The previous prime is 12749717. The next prime is 12749749. The reversal of 12749741 is 14794721.

12749741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-12749741 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 (12749749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335501 + ... + 335538.

It is an arithmetic number, because the mean of its divisors is an integer number (3355200).

Almost surely, 2^12749741 is an apocalyptic number.

It is an amenable number.

12749741 is a deficient number, since it is larger than the sum of its proper divisors (671059).

12749741 is an equidigital number, since it uses as much as digits as its factorization.

12749741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671058.

The product of its digits is 14112, while the sum is 35.

The square root of 12749741 is about 3570.6779468331. The cubic root of 12749741 is about 233.6148545337.

The spelling of 12749741 in words is "twelve million, seven hundred forty-nine thousand, seven hundred forty-one".