12746945 has 16 divisors (see below), whose sum is σ = 16070400. Its totient is φ = 9687744.

The previous prime is 12746939. The next prime is 12746953. The reversal of 12746945 is 54964721.

It is a cyclic number.

It is not a de Polignac number, because 12746945 - 2¹⁰ = 12745921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12746899 and 12746908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22607 + ... + 23163.

It is an arithmetic number, because the mean of its divisors is an integer number (1004400).

Almost surely, 2^12746945 is an apocalyptic number.

It is an amenable number.

12746945 is a deficient number, since it is larger than the sum of its proper divisors (3323455).

12746945 is a wasteful number, since it uses less digits than its factorization.

12746945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784.

The product of its digits is 60480, while the sum is 38.

The square root of 12746945 is about 3570.2864030775. The cubic root of 12746945 is about 233.5977761505.

The spelling of 12746945 in words is "twelve million, seven hundred forty-six thousand, nine hundred forty-five".