12523633 has 4 divisors (see below), whose sum is σ = 12682240. Its totient is φ = 12365028.

The previous prime is 12523627. The next prime is 12523639. The reversal of 12523633 is 33632521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12523627) and next prime (12523639).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12523633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12523598 and 12523607.

It is not an unprimeable number, because it can be changed into a prime (12523639) 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 in 3 ways as a sum of consecutive naturals, for example, 79185 + ... + 79342.

It is an arithmetic number, because the mean of its divisors is an integer number (3170560).

Almost surely, 2^12523633 is an apocalyptic number.

It is an amenable number.

12523633 is a deficient number, since it is larger than the sum of its proper divisors (158607).

12523633 is an equidigital number, since it uses as much as digits as its factorization.

12523633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158606.

The product of its digits is 3240, while the sum is 25.

The square root of 12523633 is about 3538.8745386069. The cubic root of 12523633 is about 232.2256091611.

The spelling of 12523633 in words is "twelve million, five hundred twenty-three thousand, six hundred thirty-three".