2102051 has 6 divisors (see below), whose sum is σ = 2445300. Its totient is φ = 1801716.

The previous prime is 2102021. The next prime is 2102057. The reversal of 2102051 is 1502012.

It is not a de Polignac number, because 2102051 - 2¹⁴ = 2085667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102057) 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 5 ways as a sum of consecutive naturals, for example, 21401 + ... + 21498.

It is an arithmetic number, because the mean of its divisors is an integer number (407550).

2^2102051 is an apocalyptic number.

2102051 is a deficient number, since it is larger than the sum of its proper divisors (343249).

2102051 is an equidigital number, since it uses as much as digits as its factorization.

2102051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42913 (or 42906 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 2102051 is about 1449.8451641468. The cubic root of 2102051 is about 128.0995928999.

Adding to 2102051 its reverse (1502012), we get a palindrome (3604063).

The spelling of 2102051 in words is "two million, one hundred two thousand, fifty-one".