13082921 has 2 divisors, whose sum is σ = 13082922. Its totient is φ = 13082920.

The previous prime is 13082917. The next prime is 13082933. The reversal of 13082921 is 12928031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8042896 + 5040025 = 2836^2 + 2245^2 .

It is an emirp because it is prime and its reverse (12928031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13082921 - 2² = 13082917 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13082981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6541460 + 6541461.

It is an arithmetic number, because the mean of its divisors is an integer number (6541461).

Almost surely, 2^13082921 is an apocalyptic number.

It is an amenable number.

13082921 is a deficient number, since it is larger than the sum of its proper divisors (1).

13082921 is an equidigital number, since it uses as much as digits as its factorization.

13082921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 13082921 is about 3617.0320706347. The cubic root of 13082921 is about 235.6323455273.

The spelling of 13082921 in words is "thirteen million, eighty-two thousand, nine hundred twenty-one".