2125663 has 8 divisors (see below), whose sum is σ = 2369520. Its totient is φ = 1895040.

The previous prime is 2125661. The next prime is 2125679. The reversal of 2125663 is 3665212.

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

It is a cyclic number.

It is not a de Polignac number, because 2125663 - 2¹ = 2125661 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 1 + 2¹⁵ + 5⁹ + 6⁴ + 6⁶ + 3¹⁰ .

It is a Duffinian number.

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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2968 + ... + 3613.

It is an arithmetic number, because the mean of its divisors is an integer number (296190).

2^2125663 is an apocalyptic number.

2125663 is a deficient number, since it is larger than the sum of its proper divisors (243857).

2125663 is a wasteful number, since it uses less digits than its factorization.

2125663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617.

The product of its digits is 2160, while the sum is 25.

The square root of 2125663 is about 1457.9653631002. The cubic root of 2125663 is about 128.5774488069.

The spelling of 2125663 in words is "two million, one hundred twenty-five thousand, six hundred sixty-three".