13978119 has 8 divisors (see below), whose sum is σ = 19141360. Its totient is φ = 9066816.

The previous prime is 13978109. The next prime is 13978123. The reversal of 13978119 is 91187931.

13978119 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 not a de Polignac number, because 13978119 - 2¹³ = 13969927 is a prime.

It is a super-2 number, since 2×13978119² = 390775621556322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13978109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62854 + ... + 63075.

It is an arithmetic number, because the mean of its divisors is an integer number (2392670).

Almost surely, 2^13978119 is an apocalyptic number.

13978119 is a deficient number, since it is larger than the sum of its proper divisors (5163241).

13978119 is a wasteful number, since it uses less digits than its factorization.

13978119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125969.

The product of its digits is 13608, while the sum is 39.

The square root of 13978119 is about 3738.7322717734. The cubic root of 13978119 is about 240.8885982720. Note that the first 3 decimals are identical.

The spelling of 13978119 in words is "thirteen million, nine hundred seventy-eight thousand, one hundred nineteen".