12125669 has 4 divisors (see below), whose sum is σ = 12652896. Its totient is φ = 11598444.

The previous prime is 12125657. The next prime is 12125689. The reversal of 12125669 is 96652121.

It is a happy number.

12125669 is digitally balanced in base 2, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12125669 - 2⁸ = 12125413 is a prime.

It is a super-2 number, since 2×12125669² = 294063697395122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12125609) 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, 263579 + ... + 263624.

It is an arithmetic number, because the mean of its divisors is an integer number (3163224).

Almost surely, 2^12125669 is an apocalyptic number.

It is an amenable number.

12125669 is a deficient number, since it is larger than the sum of its proper divisors (527227).

12125669 is an equidigital number, since it uses as much as digits as its factorization.

12125669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527226.

The product of its digits is 6480, while the sum is 32.

The square root of 12125669 is about 3482.1931307726. The cubic root of 12125669 is about 229.7392697627.

The spelling of 12125669 in words is "twelve million, one hundred twenty-five thousand, six hundred sixty-nine".