12125523 has 8 divisors (see below), whose sum is σ = 16217536. Its totient is φ = 8058600.

The previous prime is 12125521. The next prime is 12125543. The reversal of 12125523 is 32552121.

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

It is not a de Polignac number, because 12125523 - 2¹ = 12125521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12125523.

It is not an unprimeable number, because it can be changed into a prime (12125521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5113 + ... + 7098.

It is an arithmetic number, because the mean of its divisors is an integer number (2027192).

Almost surely, 2^12125523 is an apocalyptic number.

12125523 is a deficient number, since it is larger than the sum of its proper divisors (4092013).

12125523 is a wasteful number, since it uses less digits than its factorization.

12125523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12545.

The product of its digits is 600, while the sum is 21.

The square root of 12125523 is about 3482.1721669096. The cubic root of 12125523 is about 229.7383476949.

Adding to 12125523 its reverse (32552121), we get a palindrome (44677644).

It can be divided in two parts, 121255 and 23, that added together give a triangular number (121278 = T₄₉₂).

The spelling of 12125523 in words is "twelve million, one hundred twenty-five thousand, five hundred twenty-three".