12039523 has 2 divisors, whose sum is σ = 12039524. Its totient is φ = 12039522.

The previous prime is 12039499. The next prime is 12039539. The reversal of 12039523 is 32593021.

It is a happy number.

12039523 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12039523 - 2⁵ = 12039491 is a prime.

It is a super-2 number, since 2×12039523² = 289900228135058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12039583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6019761 + 6019762.

It is an arithmetic number, because the mean of its divisors is an integer number (6019762).

Almost surely, 2^12039523 is an apocalyptic number.

12039523 is a deficient number, since it is larger than the sum of its proper divisors (1).

12039523 is an equidigital number, since it uses as much as digits as its factorization.

12039523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 12039523 is about 3469.8015793414. The cubic root of 12039523 is about 229.1939205199.

The spelling of 12039523 in words is "twelve million, thirty-nine thousand, five hundred twenty-three".