12736745 has 32 divisors (see below), whose sum is σ = 18662400. Its totient is φ = 8150976.

The previous prime is 12736741. The next prime is 12736747. The reversal of 12736745 is 54763721.

It is a cyclic number.

It is not a de Polignac number, because 12736745 - 2² = 12736741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (12736741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71066 + ... + 71244.

It is an arithmetic number, because the mean of its divisors is an integer number (583200).

Almost surely, 2^12736745 is an apocalyptic number.

It is an amenable number.

12736745 is a deficient number, since it is larger than the sum of its proper divisors (5925655).

12736745 is a wasteful number, since it uses less digits than its factorization.

12736745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317.

The product of its digits is 35280, while the sum is 35.

The square root of 12736745 is about 3568.8576603726. The cubic root of 12736745 is about 233.5354518540.

The spelling of 12736745 in words is "twelve million, seven hundred thirty-six thousand, seven hundred forty-five".