14897521 has 2 divisors, whose sum is σ = 14897522. Its totient is φ = 14897520.

The previous prime is 14897513. The next prime is 14897527. The reversal of 14897521 is 12579841.

14897521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13220496 + 1677025 = 3636^2 + 1295^2 .

It is an emirp because it is prime and its reverse (12579841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14897521 - 2³ = 14897513 is a prime.

It is a super-2 number, since 2×14897521² = 443872263890882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14897527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7448760 + 7448761.

It is an arithmetic number, because the mean of its divisors is an integer number (7448761).

Almost surely, 2^14897521 is an apocalyptic number.

It is an amenable number.

14897521 is a deficient number, since it is larger than the sum of its proper divisors (1).

14897521 is an equidigital number, since it uses as much as digits as its factorization.

14897521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 37.

The square root of 14897521 is about 3859.7306900871. The cubic root of 14897521 is about 246.0582903268.

It can be divided in two parts, 148975 and 21, that added together give a square (148996 = 386²).

The spelling of 14897521 in words is "fourteen million, eight hundred ninety-seven thousand, five hundred twenty-one".