2125997 has 4 divisors (see below), whose sum is σ = 2138460. Its totient is φ = 2113536.

The previous prime is 2125993. The next prime is 2126017. The reversal of 2125997 is 7995212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1833316 + 292681 = 1354^2 + 541^2 .

It is a cyclic number.

It is not a de Polignac number, because 2125997 - 2² = 2125993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125993) 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, 5972 + ... + 6317.

It is an arithmetic number, because the mean of its divisors is an integer number (534615).

2^2125997 is an apocalyptic number.

It is an amenable number.

2125997 is a deficient number, since it is larger than the sum of its proper divisors (12463).

2125997 is a wasteful number, since it uses less digits than its factorization.

2125997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12462.

The product of its digits is 11340, while the sum is 35.

The square root of 2125997 is about 1458.0799017887. The cubic root of 2125997 is about 128.5841828029.

The spelling of 2125997 in words is "two million, one hundred twenty-five thousand, nine hundred ninety-seven".