14277421 has 2 divisors, whose sum is σ = 14277422. Its totient is φ = 14277420.

The previous prime is 14277407. The next prime is 14277427. The reversal of 14277421 is 12477241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7590025 + 6687396 = 2755^2 + 2586^2 .

It is a cyclic number.

It is not a de Polignac number, because 14277421 - 2⁹ = 14276909 is a prime.

It is a super-2 number, since 2×14277421² = 407689500822482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14277421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14277427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7138710 + 7138711.

It is an arithmetic number, because the mean of its divisors is an integer number (7138711).

Almost surely, 2^14277421 is an apocalyptic number.

It is an amenable number.

14277421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14277421 is an equidigital number, since it uses as much as digits as its factorization.

14277421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136, while the sum is 28.

The square root of 14277421 is about 3778.5474722438. The cubic root of 14277421 is about 242.5957874327.

The spelling of 14277421 in words is "fourteen million, two hundred seventy-seven thousand, four hundred twenty-one".