14213657 has 2 divisors, whose sum is σ = 14213658. Its totient is φ = 14213656.

The previous prime is 14213627. The next prime is 14213659. The reversal of 14213657 is 75631241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13756681 + 456976 = 3709^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 14213657 - 2¹⁰ = 14212633 is a prime.

Together with 14213659, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14213659) 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, 7106828 + 7106829.

It is an arithmetic number, because the mean of its divisors is an integer number (7106829).

Almost surely, 2^14213657 is an apocalyptic number.

It is an amenable number.

14213657 is a deficient number, since it is larger than the sum of its proper divisors (1).

14213657 is an equidigital number, since it uses as much as digits as its factorization.

14213657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 14213657 is about 3770.1003965412. The cubic root of 14213657 is about 242.2340983135.

Adding to 14213657 its reverse (75631241), we get a palindrome (89844898).

The spelling of 14213657 in words is "fourteen million, two hundred thirteen thousand, six hundred fifty-seven".