12393523 has 2 divisors, whose sum is σ = 12393524. Its totient is φ = 12393522.

The previous prime is 12393499. The next prime is 12393533. The reversal of 12393523 is 32539321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12393523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12393491 and 12393500.

It is not a weakly prime, because it can be changed into another prime (12393533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6196761 + 6196762.

It is an arithmetic number, because the mean of its divisors is an integer number (6196762).

Almost surely, 2^12393523 is an apocalyptic number.

12393523 is a deficient number, since it is larger than the sum of its proper divisors (1).

12393523 is an equidigital number, since it uses as much as digits as its factorization.

12393523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 28.

The square root of 12393523 is about 3520.4435800052. The cubic root of 12393523 is about 231.4185984518.

The spelling of 12393523 in words is "twelve million, three hundred ninety-three thousand, five hundred twenty-three".