12545123 has 4 divisors (see below), whose sum is σ = 12717048. Its totient is φ = 12373200.

The previous prime is 12545089. The next prime is 12545129. The reversal of 12545123 is 32154521.

12545123 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12545123 - 2⁶ = 12545059 is a prime.

It is a super-2 number, since 2×12545123² = 314760222170258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12545129) 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, 85853 + ... + 85998.

It is an arithmetic number, because the mean of its divisors is an integer number (3179262).

Almost surely, 2^12545123 is an apocalyptic number.

12545123 is a deficient number, since it is larger than the sum of its proper divisors (171925).

12545123 is an equidigital number, since it uses as much as digits as its factorization.

12545123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171924.

The product of its digits is 1200, while the sum is 23.

The square root of 12545123 is about 3541.9095132428. The cubic root of 12545123 is about 232.3583628797.

Adding to 12545123 its reverse (32154521), we get a palindrome (44699644).

The spelling of 12545123 in words is "twelve million, five hundred forty-five thousand, one hundred twenty-three".