12764161 has 8 divisors (see below), whose sum is σ = 13845384. Its totient is φ = 11719680.

The previous prime is 12764099. The next prime is 12764173. The reversal of 12764161 is 16146721.

It can be written as a sum of positive squares in 4 ways, for example, as 197136 + 12567025 = 444^2 + 3545^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12764161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12764261) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8460 + ... + 9853.

It is an arithmetic number, because the mean of its divisors is an integer number (1730673).

Almost surely, 2^12764161 is an apocalyptic number.

It is an amenable number.

12764161 is a deficient number, since it is larger than the sum of its proper divisors (1081223).

12764161 is a wasteful number, since it uses less digits than its factorization.

12764161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18371.

The product of its digits is 2016, while the sum is 28.

The square root of 12764161 is about 3572.6966006086. The cubic root of 12764161 is about 233.7028944132.

The spelling of 12764161 in words is "twelve million, seven hundred sixty-four thousand, one hundred sixty-one".