7214257 has 2 divisors, whose sum is σ = 7214258. Its totient is φ = 7214256.

The previous prime is 7214197. The next prime is 7214269. The reversal of 7214257 is 7524127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6130576 + 1083681 = 2476^2 + 1041^2 .

It is a cyclic number.

It is not a de Polignac number, because 7214257 - 2¹¹ = 7212209 is a prime.

It is not a weakly prime, because it can be changed into another prime (7214657) 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, 3607128 + 3607129.

It is an arithmetic number, because the mean of its divisors is an integer number (3607129).

Almost surely, 2^7214257 is an apocalyptic number.

It is an amenable number.

7214257 is a deficient number, since it is larger than the sum of its proper divisors (1).

7214257 is an equidigital number, since it uses as much as digits as its factorization.

7214257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 28.

The square root of 7214257 is about 2685.9368942699. The cubic root of 7214257 is about 193.2252464268.

The spelling of 7214257 in words is "seven million, two hundred fourteen thousand, two hundred fifty-seven".