1928133 has 6 divisors (see below), whose sum is σ = 2785094. Its totient is φ = 1285416.

The previous prime is 1928099. The next prime is 1928141. The reversal of 1928133 is 3318291.

It can be written as a sum of positive squares in only one way, i.e., 1633284 + 294849 = 1278^2 + 543^2 .

It is not a de Polignac number, because 1928133 - 2¹⁰ = 1927109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1928097 and 1928106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928183) 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 5 ways as a sum of consecutive naturals, for example, 107110 + ... + 107127.

2^1928133 is an apocalyptic number.

It is an amenable number.

1928133 is a deficient number, since it is larger than the sum of its proper divisors (856961).

1928133 is a wasteful number, since it uses less digits than its factorization.

1928133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214243 (or 214240 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1928133 is about 1388.5722883595. The cubic root of 1928133 is about 124.4645469285.

The spelling of 1928133 in words is "one million, nine hundred twenty-eight thousand, one hundred thirty-three".