2109057 has 16 divisors (see below), whose sum is σ = 2991360. Its totient is φ = 1318032.

The previous prime is 2109053. The next prime is 2109059. The reversal of 2109057 is 7509012.

It is not a de Polignac number, because 2109057 - 2² = 2109053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2109053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9178 + ... + 9404.

It is an arithmetic number, because the mean of its divisors is an integer number (186960).

2^2109057 is an apocalyptic number.

It is an amenable number.

2109057 is a deficient number, since it is larger than the sum of its proper divisors (882303).

2109057 is a wasteful number, since it uses less digits than its factorization.

2109057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 2109057 is about 1452.2592743722. The cubic root of 2109057 is about 128.2417509675.

The spelling of 2109057 in words is "two million, one hundred nine thousand, fifty-seven".