2125669 has 24 divisors (see below), whose sum is σ = 2757888. Its totient is φ = 1622880.

The previous prime is 2125661. The next prime is 2125679. The reversal of 2125669 is 9665212.

2125669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2125669 - 2³ = 2125661 is a prime.

It is a super-2 number, since 2×2125669² = 9036937395122, which contains 22 as substring.

2125669 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2125669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125661) 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 23 ways as a sum of consecutive naturals, for example, 29904 + ... + 29974.

It is an arithmetic number, because the mean of its divisors is an integer number (114912).

2^2125669 is an apocalyptic number.

It is an amenable number.

2125669 is a deficient number, since it is larger than the sum of its proper divisors (632219).

2125669 is a wasteful number, since it uses less digits than its factorization.

2125669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 138 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 2125669 is about 1457.9674207608. The cubic root of 2125669 is about 128.5775697831.

The spelling of 2125669 in words is "two million, one hundred twenty-five thousand, six hundred sixty-nine".