12601279 has 8 divisors (see below), whose sum is σ = 13115520. Its totient is φ = 12097176.

The previous prime is 12601273. The next prime is 12601289. The reversal of 12601279 is 97210621.

It is a happy number.

12601279 is digitally balanced in base 3, 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 12601279 - 2³ = 12601271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12601271) 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, 54 + ... + 5020.

It is an arithmetic number, because the mean of its divisors is an integer number (1639440).

Almost surely, 2^12601279 is an apocalyptic number.

12601279 is a deficient number, since it is larger than the sum of its proper divisors (514241).

12601279 is an equidigital number, since it uses as much as digits as its factorization.

12601279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5069.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 12601279 is about 3549.8280240034. The cubic root of 12601279 is about 232.7045503985.

It can be divided in two parts, 12601 and 279, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 12601279 in words is "twelve million, six hundred one thousand, two hundred seventy-nine".