14131540 has 24 divisors (see below), whose sum is σ = 29860992. Its totient is φ = 5617440.

The previous prime is 14131531. The next prime is 14131541. The reversal of 14131540 is 4513141.

14131540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14131541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1225 + ... + 5455.

It is an arithmetic number, because the mean of its divisors is an integer number (1244208).

Almost surely, 2^14131540 is an apocalyptic number.

14131540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14131540 is an abundant number, since it is smaller than the sum of its proper divisors (15729452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14131540 is a wasteful number, since it uses less digits than its factorization.

14131540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407 (or 4405 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 14131540 is about 3759.1940625618. The cubic root of 14131540 is about 241.7667082173.

Adding to 14131540 its reverse (4513141), we get a palindrome (18644681).

The spelling of 14131540 in words is "fourteen million, one hundred thirty-one thousand, five hundred forty".