12769945 has 8 divisors (see below), whose sum is σ = 15990336. Its totient is φ = 9771696.

The previous prime is 12769943. The next prime is 12769949. The reversal of 12769945 is 54996721.

It is a happy number.

12769945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12769945 - 2¹ = 12769943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12769943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55407 + ... + 55636.

It is an arithmetic number, because the mean of its divisors is an integer number (1998792).

Almost surely, 2^12769945 is an apocalyptic number.

It is an amenable number.

12769945 is a deficient number, since it is larger than the sum of its proper divisors (3220391).

12769945 is a wasteful number, since it uses less digits than its factorization.

12769945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111071.

The product of its digits is 136080, while the sum is 43.

The square root of 12769945 is about 3573.5059815257. The cubic root of 12769945 is about 233.7381894192.

The spelling of 12769945 in words is "twelve million, seven hundred sixty-nine thousand, nine hundred forty-five".