2122925 has 18 divisors (see below), whose sum is σ = 3063978. Its totient is φ = 1454880.

The previous prime is 2122921. The next prime is 2122937. The reversal of 2122925 is 5292212.

It can be written as a sum of positive squares in 3 ways, for example, as 103684 + 2019241 = 322^2 + 1421^2 .

It is not a de Polignac number, because 2122925 - 2² = 2122921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122921) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 359 + ... + 2091.

It is an arithmetic number, because the mean of its divisors is an integer number (170221).

2^2122925 is an apocalyptic number.

2122925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2122925 is a deficient number, since it is larger than the sum of its proper divisors (941053).

2122925 is a wasteful number, since it uses less digits than its factorization.

2122925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757 (or 1745 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 2122925 is about 1457.0260807549. The cubic root of 2122925 is about 128.5222195575.

The spelling of 2122925 in words is "two million, one hundred twenty-two thousand, nine hundred twenty-five".