12765166 has 4 divisors (see below), whose sum is σ = 19147752. Its totient is φ = 6382582.

The previous prime is 12765163. The next prime is 12765167. The reversal of 12765166 is 66156721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12765163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3191290 + ... + 3191293.

It is an arithmetic number, because the mean of its divisors is an integer number (4786938).

Almost surely, 2^12765166 is an apocalyptic number.

12765166 is a deficient number, since it is larger than the sum of its proper divisors (6382586).

12765166 is an equidigital number, since it uses as much as digits as its factorization.

12765166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6382585.

The product of its digits is 15120, while the sum is 34.

The square root of 12765166 is about 3572.8372479026. The cubic root of 12765166 is about 233.7090278688.

The spelling of 12765166 in words is "twelve million, seven hundred sixty-five thousand, one hundred sixty-six".