12082921 has 2 divisors, whose sum is σ = 12082922. Its totient is φ = 12082920.

The previous prime is 12082919. The next prime is 12082943. The reversal of 12082921 is 12928021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7507600 + 4575321 = 2740^2 + 2139^2 .

It is a cyclic number.

It is not a de Polignac number, because 12082921 - 2¹ = 12082919 is a prime.

Together with 12082919, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12083921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6041460 + 6041461.

It is an arithmetic number, because the mean of its divisors is an integer number (6041461).

Almost surely, 2^12082921 is an apocalyptic number.

It is an amenable number.

12082921 is a deficient number, since it is larger than the sum of its proper divisors (1).

12082921 is an equidigital number, since it uses as much as digits as its factorization.

12082921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 12082921 is about 3476.0496256527. The cubic root of 12082921 is about 229.4689765562.

The spelling of 12082921 in words is "twelve million, eighty-two thousand, nine hundred twenty-one".