12381583 has 2 divisors, whose sum is σ = 12381584. Its totient is φ = 12381582.

The previous prime is 12381557. The next prime is 12381587. The reversal of 12381583 is 38518321.

It is a strong prime.

It is an emirp because it is prime and its reverse (38518321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12381583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12381587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6190791 + 6190792.

It is an arithmetic number, because the mean of its divisors is an integer number (6190792).

Almost surely, 2^12381583 is an apocalyptic number.

12381583 is a deficient number, since it is larger than the sum of its proper divisors (1).

12381583 is an equidigital number, since it uses as much as digits as its factorization.

12381583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 31.

The square root of 12381583 is about 3518.7473623436. The cubic root of 12381583 is about 231.3442578498.

The spelling of 12381583 in words is "twelve million, three hundred eighty-one thousand, five hundred eighty-three".