13907543 has 4 divisors (see below), whose sum is σ = 14977368. Its totient is φ = 12837720.

The previous prime is 13907521. The next prime is 13907549. The reversal of 13907543 is 34570931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13907543 - 2⁸ = 13907287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13907549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534893 + ... + 534918.

It is an arithmetic number, because the mean of its divisors is an integer number (3744342).

Almost surely, 2^13907543 is an apocalyptic number.

13907543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13907543 is a deficient number, since it is larger than the sum of its proper divisors (1069825).

13907543 is a wasteful number, since it uses less digits than its factorization.

13907543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069824.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 13907543 is about 3729.2818343483. The cubic root of 13907543 is about 240.4824957761.

The spelling of 13907543 in words is "thirteen million, nine hundred seven thousand, five hundred forty-three".