13140478 has 16 divisors (see below), whose sum is σ = 21329280. Its totient is φ = 6035616.

The previous prime is 13140469. The next prime is 13140487. The reversal of 13140478 is 87404131.

13140478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13140469) and next prime (13140487).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4851 + ... + 7057.

It is an arithmetic number, because the mean of its divisors is an integer number (1333080).

Almost surely, 2^13140478 is an apocalyptic number.

13140478 is a deficient number, since it is larger than the sum of its proper divisors (8188802).

13140478 is a wasteful number, since it uses less digits than its factorization.

13140478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 13140478 is about 3624.9797240812. The cubic root of 13140478 is about 235.9773869935.

The spelling of 13140478 in words is "thirteen million, one hundred forty thousand, four hundred seventy-eight".