12528578 has 8 divisors (see below), whose sum is σ = 18936720. Its totient is φ = 6216340.

The previous prime is 12528563. The next prime is 12528587. The reversal of 12528578 is 87582521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23648 + ... + 24171.

It is an arithmetic number, because the mean of its divisors is an integer number (2367090).

Almost surely, 2^12528578 is an apocalyptic number.

12528578 is a deficient number, since it is larger than the sum of its proper divisors (6408142).

12528578 is a wasteful number, since it uses less digits than its factorization.

12528578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47952.

The product of its digits is 44800, while the sum is 38.

The square root of 12528578 is about 3539.5731381058. The cubic root of 12528578 is about 232.2561701687.

The spelling of 12528578 in words is "twelve million, five hundred twenty-eight thousand, five hundred seventy-eight".