2051189 has 12 divisors (see below), whose sum is σ = 2446668. Its totient is φ = 1713600.

The previous prime is 2051173. The next prime is 2051191. The reversal of 2051189 is 9811502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 550564 + 1500625 = 742^2 + 1225^2 .

It is not a de Polignac number, because 2051189 - 2⁴ = 2051173 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1499 + ... + 2519.

It is an arithmetic number, because the mean of its divisors is an integer number (203889).

2^2051189 is an apocalyptic number.

It is an amenable number.

2051189 is a deficient number, since it is larger than the sum of its proper divisors (395479).

2051189 is a wasteful number, since it uses less digits than its factorization.

2051189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 2051189 is about 1432.1972629495. The cubic root of 2051189 is about 127.0579643230.

The spelling of 2051189 in words is "two million, fifty-one thousand, one hundred eighty-nine".