14916521 has 2 divisors, whose sum is σ = 14916522. Its totient is φ = 14916520.

The previous prime is 14916509. The next prime is 14916523. The reversal of 14916521 is 12561941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14784025 + 132496 = 3845^2 + 364^2 .

It is a cyclic number.

It is not a de Polignac number, because 14916521 - 2⁶ = 14916457 is a prime.

It is a super-3 number, since 3×14916521³ (a number of 22 digits) contains 333 as substring.

Together with 14916523, 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 (14916523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7458260 + 7458261.

It is an arithmetic number, because the mean of its divisors is an integer number (7458261).

Almost surely, 2^14916521 is an apocalyptic number.

It is an amenable number.

14916521 is a deficient number, since it is larger than the sum of its proper divisors (1).

14916521 is an equidigital number, since it uses as much as digits as its factorization.

14916521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 14916521 is about 3862.1912174309. The cubic root of 14916521 is about 246.1628518265.

The spelling of 14916521 in words is "fourteen million, nine hundred sixteen thousand, five hundred twenty-one".