12978119 has 16 divisors (see below), whose sum is σ = 16705536. Its totient is φ = 9784800.

The previous prime is 12978113. The next prime is 12978139. The reversal of 12978119 is 91187921.

12978119 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12978119 - 2⁸ = 12977863 is a prime.

It is a super-2 number, since 2×12978119² = 336863145556322, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12978113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332 + ... + 5105.

It is an arithmetic number, because the mean of its divisors is an integer number (1044096).

Almost surely, 2^12978119 is an apocalyptic number.

12978119 is a deficient number, since it is larger than the sum of its proper divisors (3727417).

12978119 is a wasteful number, since it uses less digits than its factorization.

12978119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486.

The product of its digits is 9072, while the sum is 38.

The square root of 12978119 is about 3602.5156488210. The cubic root of 12978119 is about 235.0014727537.

The spelling of 12978119 in words is "twelve million, nine hundred seventy-eight thousand, one hundred nineteen".