861133 has 8 divisors (see below), whose sum is σ = 1059968. Its totient is φ = 681264.

The previous prime is 861131. The next prime is 861139. The reversal of 861133 is 331168.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 861133 - 2¹ = 861131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4641 + ... + 4822.

It is an arithmetic number, because the mean of its divisors is an integer number (132496).

2⁸⁶¹¹³³ is an apocalyptic number.

It is an amenable number.

861133 is a deficient number, since it is larger than the sum of its proper divisors (198835).

861133 is a wasteful number, since it uses less digits than its factorization.

861133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9483.

The product of its digits is 432, while the sum is 22.

The square root of 861133 is about 927.9725211449. The cubic root of 861133 is about 95.1385973300.

The spelling of 861133 in words is "eight hundred sixty-one thousand, one hundred thirty-three".