13713431 has 4 divisors (see below), whose sum is σ = 14032392. Its totient is φ = 13394472.

The previous prime is 13713419. The next prime is 13713443. The reversal of 13713431 is 13431731.

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

It is an interprime number because it is at equal distance from previous prime (13713419) and next prime (13713443).

It is a cyclic number.

It is not a de Polignac number, because 13713431 - 2¹⁰ = 13712407 is a prime.

It is a super-2 number, since 2×13713431² = 376116379583522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13713397 and 13713406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13713461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159416 + ... + 159501.

It is an arithmetic number, because the mean of its divisors is an integer number (3508098).

Almost surely, 2^13713431 is an apocalyptic number.

13713431 is a deficient number, since it is larger than the sum of its proper divisors (318961).

13713431 is an equidigital number, since it uses as much as digits as its factorization.

13713431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318960.

The product of its digits is 756, while the sum is 23.

The square root of 13713431 is about 3703.1649976743. The cubic root of 13713431 is about 239.3584195239.

The spelling of 13713431 in words is "thirteen million, seven hundred thirteen thousand, four hundred thirty-one".