1856133 has 6 divisors (see below), whose sum is σ = 2681094. Its totient is φ = 1237416.

The previous prime is 1856119. The next prime is 1856137. The reversal of 1856133 is 3316581.

It can be written as a sum of positive squares in only one way, i.e., 1855044 + 1089 = 1362^2 + 33^2 .

It is not a de Polignac number, because 1856133 - 2⁶ = 1856069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1856097 and 1856106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1856137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103110 + ... + 103127.

It is an arithmetic number, because the mean of its divisors is an integer number (446849).

2^1856133 is an apocalyptic number.

It is an amenable number.

1856133 is a deficient number, since it is larger than the sum of its proper divisors (824961).

1856133 is a wasteful number, since it uses less digits than its factorization.

1856133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206243 (or 206240 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1856133 is about 1362.3997210804. The cubic root of 1856133 is about 122.8956084324.

The spelling of 1856133 in words is "one million, eight hundred fifty-six thousand, one hundred thirty-three".