14061721 has 2 divisors, whose sum is σ = 14061722. Its totient is φ = 14061720.

The previous prime is 14061689. The next prime is 14061757. The reversal of 14061721 is 12716041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9486400 + 4575321 = 3080^2 + 2139^2 .

It is a cyclic number.

It is not a de Polignac number, because 14061721 - 2⁵ = 14061689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14061692 and 14061701.

It is not a weakly prime, because it can be changed into another prime (14061791) 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, 7030860 + 7030861.

It is an arithmetic number, because the mean of its divisors is an integer number (7030861).

Almost surely, 2^14061721 is an apocalyptic number.

It is an amenable number.

14061721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14061721 is an equidigital number, since it uses as much as digits as its factorization.

14061721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 14061721 is about 3749.8961318949. The cubic root of 14061721 is about 241.3678890840.

Adding to 14061721 its reverse (12716041), we get a palindrome (26777762).

The spelling of 14061721 in words is "fourteen million, sixty-one thousand, seven hundred twenty-one".