12125827 has 4 divisors (see below), whose sum is σ = 13858096. Its totient is φ = 10393560.

The previous prime is 12125809. The next prime is 12125837. The reversal of 12125827 is 72852121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72852121 = 41 ⋅1776881.

It is a cyclic number.

It is not a de Polignac number, because 12125827 - 2¹⁹ = 11601539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12125795 and 12125804.

It is not an unprimeable number, because it can be changed into a prime (12125837) 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, 866124 + ... + 866137.

It is an arithmetic number, because the mean of its divisors is an integer number (3464524).

Almost surely, 2^12125827 is an apocalyptic number.

12125827 is a deficient number, since it is larger than the sum of its proper divisors (1732269).

12125827 is an equidigital number, since it uses as much as digits as its factorization.

12125827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732268.

The product of its digits is 2240, while the sum is 28.

The square root of 12125827 is about 3482.2158175507. The cubic root of 12125827 is about 229.7402676086.

Adding to 12125827 its reverse (72852121), we get a palindrome (84977948).

The spelling of 12125827 in words is "twelve million, one hundred twenty-five thousand, eight hundred twenty-seven".