14925821 has 2 divisors, whose sum is σ = 14925822. Its totient is φ = 14925820.

The previous prime is 14925809. The next prime is 14925829. The reversal of 14925821 is 12852941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12880921 + 2044900 = 3589^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 14925821 - 2¹⁰ = 14924797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14925829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7462910 + 7462911.

It is an arithmetic number, because the mean of its divisors is an integer number (7462911).

Almost surely, 2^14925821 is an apocalyptic number.

It is an amenable number.

14925821 is a deficient number, since it is larger than the sum of its proper divisors (1).

14925821 is an equidigital number, since it uses as much as digits as its factorization.

14925821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 32.

The square root of 14925821 is about 3863.3950095738. The cubic root of 14925821 is about 246.2139995642.

The spelling of 14925821 in words is "fourteen million, nine hundred twenty-five thousand, eight hundred twenty-one".