12068921 has 2 divisors, whose sum is σ = 12068922. Its totient is φ = 12068920.

The previous prime is 12068891. The next prime is 12068941. The reversal of 12068921 is 12986021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6943225 + 5125696 = 2635^2 + 2264^2 .

It is a cyclic number.

It is not a de Polignac number, because 12068921 - 2²² = 7874617 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12068941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6034460 + 6034461.

It is an arithmetic number, because the mean of its divisors is an integer number (6034461).

Almost surely, 2^12068921 is an apocalyptic number.

It is an amenable number.

12068921 is a deficient number, since it is larger than the sum of its proper divisors (1).

12068921 is an equidigital number, since it uses as much as digits as its factorization.

12068921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 12068921 is about 3474.0352617669. The cubic root of 12068921 is about 229.3803167796.

The spelling of 12068921 in words is "twelve million, sixty-eight thousand, nine hundred twenty-one".