14621521 has 2 divisors, whose sum is σ = 14621522. Its totient is φ = 14621520.

The previous prime is 14621483. The next prime is 14621533. The reversal of 14621521 is 12512641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12960000 + 1661521 = 3600^2 + 1289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14621521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14621492 and 14621501.

It is not a weakly prime, because it can be changed into another prime (14621561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7310760 + 7310761.

It is an arithmetic number, because the mean of its divisors is an integer number (7310761).

Almost surely, 2^14621521 is an apocalyptic number.

It is an amenable number.

14621521 is a deficient number, since it is larger than the sum of its proper divisors (1).

14621521 is an equidigital number, since it uses as much as digits as its factorization.

14621521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 22.

The square root of 14621521 is about 3823.8097494515. The cubic root of 14621521 is about 244.5292696812.

The spelling of 14621521 in words is "fourteen million, six hundred twenty-one thousand, five hundred twenty-one".