12746931 has 4 divisors (see below), whose sum is σ = 16995912. Its totient is φ = 8497952.

The previous prime is 12746911. The next prime is 12746939. The reversal of 12746931 is 13964721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13964721 = 3 ⋅4654907.

It is a cyclic number.

It is not a de Polignac number, because 12746931 - 2¹⁷ = 12615859 is a prime.

It is a super-2 number, since 2×12746931² = 324968499837522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12746892 and 12746901.

It is not an unprimeable number, because it can be changed into a prime (12746939) 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, 2124486 + ... + 2124491.

It is an arithmetic number, because the mean of its divisors is an integer number (4248978).

Almost surely, 2^12746931 is an apocalyptic number.

12746931 is a deficient number, since it is larger than the sum of its proper divisors (4248981).

12746931 is an equidigital number, since it uses as much as digits as its factorization.

12746931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248980.

The product of its digits is 9072, while the sum is 33.

The square root of 12746931 is about 3570.2844424499. The cubic root of 12746931 is about 233.5976906301.

The spelling of 12746931 in words is "twelve million, seven hundred forty-six thousand, nine hundred thirty-one".