14030021 has 2 divisors, whose sum is σ = 14030022. Its totient is φ = 14030020.

The previous prime is 14029957. The next prime is 14030039. The reversal of 14030021 is 12003041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13653025 + 376996 = 3695^2 + 614^2 .

It is a cyclic number.

It is not a de Polignac number, because 14030021 - 2⁶ = 14029957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14029984 and 14030011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14030921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7015010 + 7015011.

It is an arithmetic number, because the mean of its divisors is an integer number (7015011).

Almost surely, 2^14030021 is an apocalyptic number.

It is an amenable number.

14030021 is a deficient number, since it is larger than the sum of its proper divisors (1).

14030021 is an equidigital number, since it uses as much as digits as its factorization.

14030021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 14030021 is about 3745.6669633057. Note that the first 3 decimals coincide. The cubic root of 14030021 is about 241.1863769513.

Adding to 14030021 its reverse (12003041), we get a palindrome (26033062).

The spelling of 14030021 in words is "fourteen million, thirty thousand, twenty-one".