12774745 has 8 divisors (see below), whose sum is σ = 16136640. Its totient is φ = 9681840.

The previous prime is 12774743. The next prime is 12774757. The reversal of 12774745 is 54747721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12774745 - 2¹ = 12774743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12774743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67141 + ... + 67330.

It is an arithmetic number, because the mean of its divisors is an integer number (2017080).

Almost surely, 2^12774745 is an apocalyptic number.

It is an amenable number.

12774745 is a deficient number, since it is larger than the sum of its proper divisors (3361895).

12774745 is a wasteful number, since it uses less digits than its factorization.

12774745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134495.

The product of its digits is 54880, while the sum is 37.

The square root of 12774745 is about 3574.1775277678. The cubic root of 12774745 is about 233.7674717892.

The spelling of 12774745 in words is "twelve million, seven hundred seventy-four thousand, seven hundred forty-five".