12325991 has 2 divisors, whose sum is σ = 12325992. Its totient is φ = 12325990.

The previous prime is 12325981. The next prime is 12326009. The reversal of 12325991 is 19952321.

12325991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (19952321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12325991 - 2¹⁰ = 12324967 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12325931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6162995 + 6162996.

It is an arithmetic number, because the mean of its divisors is an integer number (6162996).

Almost surely, 2^12325991 is an apocalyptic number.

12325991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12325991 is an equidigital number, since it uses as much as digits as its factorization.

12325991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 32.

The square root of 12325991 is about 3510.8390734980. The cubic root of 12325991 is about 230.9975012692.

The spelling of 12325991 in words is "twelve million, three hundred twenty-five thousand, nine hundred ninety-one".