13731423 has 4 divisors (see below), whose sum is σ = 18308568. Its totient is φ = 9154280.

The previous prime is 13731409. The next prime is 13731439. The reversal of 13731423 is 32413731.

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 13731423 - 2⁴ = 13731407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13731393 and 13731402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13731323) 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, 2288568 + ... + 2288573.

It is an arithmetic number, because the mean of its divisors is an integer number (4577142).

Almost surely, 2^13731423 is an apocalyptic number.

13731423 is a deficient number, since it is larger than the sum of its proper divisors (4577145).

13731423 is an equidigital number, since it uses as much as digits as its factorization.

13731423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4577144.

The product of its digits is 1512, while the sum is 24.

The square root of 13731423 is about 3705.5934747352. The cubic root of 13731423 is about 239.4630530681.

The spelling of 13731423 in words is "thirteen million, seven hundred thirty-one thousand, four hundred twenty-three".