12038981 has 2 divisors, whose sum is σ = 12038982. Its totient is φ = 12038980.

The previous prime is 12038977. The next prime is 12038993. The reversal of 12038981 is 18983021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11628100 + 410881 = 3410^2 + 641^2 .

It is an emirp because it is prime and its reverse (18983021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12038981 - 2² = 12038977 is a prime.

It is a super-2 number, since 2×12038981² = 289874127036722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12038281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6019490 + 6019491.

It is an arithmetic number, because the mean of its divisors is an integer number (6019491).

Almost surely, 2^12038981 is an apocalyptic number.

It is an amenable number.

12038981 is a deficient number, since it is larger than the sum of its proper divisors (1).

12038981 is an equidigital number, since it uses as much as digits as its factorization.

12038981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 12038981 is about 3469.7234760136. The cubic root of 12038981 is about 229.1904811542.

The spelling of 12038981 in words is "twelve million, thirty-eight thousand, nine hundred eighty-one".