14321631 has 4 divisors (see below), whose sum is σ = 19095512. Its totient is φ = 9547752.

The previous prime is 14321609. The next prime is 14321639. The reversal of 14321631 is 13612341.

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

It is not a de Polignac number, because 14321631 - 2¹¹ = 14319583 is a prime.

It is a super-2 number, since 2×14321631² = 410218229000322, 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 = 14321598 and 14321607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14321639) 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, 2386936 + ... + 2386941.

It is an arithmetic number, because the mean of its divisors is an integer number (4773878).

Almost surely, 2^14321631 is an apocalyptic number.

14321631 is a deficient number, since it is larger than the sum of its proper divisors (4773881).

14321631 is an equidigital number, since it uses as much as digits as its factorization.

14321631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773880.

The product of its digits is 432, while the sum is 21.

The square root of 14321631 is about 3784.3930821203. The cubic root of 14321631 is about 242.8459285150.

Adding to 14321631 its reverse (13612341), we get a palindrome (27933972).

The spelling of 14321631 in words is "fourteen million, three hundred twenty-one thousand, six hundred thirty-one".