14821357 has 2 divisors, whose sum is σ = 14821358. Its totient is φ = 14821356.

The previous prime is 14821351. The next prime is 14821381. The reversal of 14821357 is 75312841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14699556 + 121801 = 3834^2 + 349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14821357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14821351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7410678 + 7410679.

It is an arithmetic number, because the mean of its divisors is an integer number (7410679).

Almost surely, 2^14821357 is an apocalyptic number.

It is an amenable number.

14821357 is a deficient number, since it is larger than the sum of its proper divisors (1).

14821357 is an equidigital number, since it uses as much as digits as its factorization.

14821357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 14821357 is about 3849.8515555798. The cubic root of 14821357 is about 245.6382470135.

The spelling of 14821357 in words is "fourteen million, eight hundred twenty-one thousand, three hundred fifty-seven".