14131021 has 4 divisors (see below), whose sum is σ = 14152572. Its totient is φ = 14109472.

The previous prime is 14131001. The next prime is 14131027. The reversal of 14131021 is 12013141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12013141 = 7 ⋅1716163.

It can be written as a sum of positive squares in 2 ways, for example, as 10634121 + 3496900 = 3261^2 + 1870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14131021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14130992 and 14131010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14131027) 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, 9760 + ... + 11113.

It is an arithmetic number, because the mean of its divisors is an integer number (3538143).

Almost surely, 2^14131021 is an apocalyptic number.

It is an amenable number.

14131021 is a deficient number, since it is larger than the sum of its proper divisors (21551).

14131021 is an equidigital number, since it uses as much as digits as its factorization.

14131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21550.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 14131021 is about 3759.1250311741. The cubic root of 14131021 is about 241.7637484441.

Adding to 14131021 its reverse (12013141), we get a palindrome (26144162).

The spelling of 14131021 in words is "fourteen million, one hundred thirty-one thousand, twenty-one".