12528041 has 4 divisors (see below), whose sum is σ = 12699732. Its totient is φ = 12356352.

The previous prime is 12528037. The next prime is 12528067. The reversal of 12528041 is 14082521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14082521 = 61 ⋅230861.

It can be written as a sum of positive squares in 2 ways, for example, as 8386816 + 4141225 = 2896^2 + 2035^2 .

It is a cyclic number.

It is not a de Polignac number, because 12528041 - 2² = 12528037 is a prime.

It is a super-2 number, since 2×12528041² = 313903622595362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12527998 and 12528016.

It is not an unprimeable number, because it can be changed into a prime (12528091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85736 + ... + 85881.

It is an arithmetic number, because the mean of its divisors is an integer number (3174933).

Almost surely, 2^12528041 is an apocalyptic number.

It is an amenable number.

12528041 is a deficient number, since it is larger than the sum of its proper divisors (171691).

12528041 is an equidigital number, since it uses as much as digits as its factorization.

12528041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171690.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 12528041 is about 3539.4972806883. The cubic root of 12528041 is about 232.2528517994.

The spelling of 12528041 in words is "twelve million, five hundred twenty-eight thousand, forty-one".