12528423 has 24 divisors (see below), whose sum is σ = 18590208. Its totient is φ = 8128512.

The previous prime is 12528421. The next prime is 12528427. The reversal of 12528423 is 32482521.

It is not a de Polignac number, because 12528423 - 2¹ = 12528421 is a prime.

It is a super-2 number, since 2×12528423² = 313922765733858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12528421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98586 + ... + 98712.

It is an arithmetic number, because the mean of its divisors is an integer number (774592).

Almost surely, 2^12528423 is an apocalyptic number.

12528423 is a deficient number, since it is larger than the sum of its proper divisors (6061785).

12528423 is a wasteful number, since it uses less digits than its factorization.

12528423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 340 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 12528423 is about 3539.5512427425. The cubic root of 12528423 is about 232.2552123623.

The spelling of 12528423 in words is "twelve million, five hundred twenty-eight thousand, four hundred twenty-three".