12718401 has 16 divisors (see below), whose sum is σ = 17633280. Its totient is φ = 8145360.

The previous prime is 12718351. The next prime is 12718403. The reversal of 12718401 is 10481721.

It is not a de Polignac number, because 12718401 - 2⁷ = 12718273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12718403) 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 15 ways as a sum of consecutive naturals, for example, 14740 + ... + 15578.

It is an arithmetic number, because the mean of its divisors is an integer number (1102080).

Almost surely, 2^12718401 is an apocalyptic number.

It is an amenable number.

12718401 is a deficient number, since it is larger than the sum of its proper divisors (4914879).

12718401 is a wasteful number, since it uses less digits than its factorization.

12718401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 12718401 is about 3566.2867243114. The cubic root of 12718401 is about 233.4232821008.

It can be divided in two parts, 127 and 18401, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 12718401 in words is "twelve million, seven hundred eighteen thousand, four hundred one".