2051933 has 4 divisors (see below), whose sum is σ = 2209788. Its totient is φ = 1894080.

The previous prime is 2051923. The next prime is 2051947. The reversal of 2051933 is 3391502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3391502 = 2 ⋅1695751.

It can be written as a sum of positive squares in 2 ways, for example, as 128164 + 1923769 = 358^2 + 1387^2 .

It is a cyclic number.

It is not a de Polignac number, because 2051933 - 2¹⁴ = 2035549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2051899 and 2051908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051923) 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, 78908 + ... + 78933.

It is an arithmetic number, because the mean of its divisors is an integer number (552447).

2^2051933 is an apocalyptic number.

It is an amenable number.

2051933 is a deficient number, since it is larger than the sum of its proper divisors (157855).

2051933 is a wasteful number, since it uses less digits than its factorization.

2051933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157854.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 2051933 is about 1432.4569801568. The cubic root of 2051933 is about 127.0733244708.

The spelling of 2051933 in words is "two million, fifty-one thousand, nine hundred thirty-three".