12919743 has 10 divisors (see below), whose sum is σ = 19299984. Its totient is φ = 8613108.

The previous prime is 12919733. The next prime is 12919747. The reversal of 12919743 is 34791921.

It is not a de Polignac number, because 12919743 - 2⁴ = 12919727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12919698 and 12919707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12919747) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 79671 + ... + 79832.

Almost surely, 2^12919743 is an apocalyptic number.

12919743 is a deficient number, since it is larger than the sum of its proper divisors (6380241).

12919743 is an equidigital number, since it uses as much as digits as its factorization.

12919743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159515 (or 159506 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 12919743 is about 3594.4044012882. The cubic root of 12919743 is about 234.6485950576.

The spelling of 12919743 in words is "twelve million, nine hundred nineteen thousand, seven hundred forty-three".