14131378 has 4 divisors (see below), whose sum is σ = 21197070. Its totient is φ = 7065688.

The previous prime is 14131357. The next prime is 14131379. The reversal of 14131378 is 87313141.

14131378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87313141 = 283 ⋅308527.

It can be written as a sum of positive squares in only one way, i.e., 11675889 + 2455489 = 3417^2 + 1567^2 .

It is not an unprimeable number, because it can be changed into a prime (14131379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3532843 + ... + 3532846.

Almost surely, 2^14131378 is an apocalyptic number.

14131378 is a deficient number, since it is larger than the sum of its proper divisors (7065692).

14131378 is an equidigital number, since it uses as much as digits as its factorization.

14131378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7065691.

The product of its digits is 2016, while the sum is 28.

The square root of 14131378 is about 3759.1725153283. The cubic root of 14131378 is about 241.7657843652.

The spelling of 14131378 in words is "fourteen million, one hundred thirty-one thousand, three hundred seventy-eight".