2128097 has 4 divisors (see below), whose sum is σ = 2137620. Its totient is φ = 2118576.

The previous prime is 2128067. The next prime is 2128099. The reversal of 2128097 is 7908212.

It is a happy number.

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 1079521 + 1048576 = 1039^2 + 1024^2 .

It is a cyclic number.

It is not a de Polignac number, because 2128097 - 2⁸ = 2127841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2128099) 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, 4418 + ... + 4875.

It is an arithmetic number, because the mean of its divisors is an integer number (534405).

2^2128097 is an apocalyptic number.

It is an amenable number.

2128097 is a deficient number, since it is larger than the sum of its proper divisors (9523).

2128097 is an equidigital number, since it uses as much as digits as its factorization.

2128097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9522.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2128097 is about 1458.7998491911. The cubic root of 2128097 is about 128.6265061496.

The spelling of 2128097 in words is "two million, one hundred twenty-eight thousand, ninety-seven".