215833 has 2 divisors, whose sum is σ = 215834. Its totient is φ = 215832.

The previous prime is 215827. The next prime is 215843. The reversal of 215833 is 338512.

215833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200704 + 15129 = 448^2 + 123^2 .

It is a cyclic number.

It is not a de Polignac number, because 215833 - 2⁵ = 215801 is a prime.

It is equal to p₁₉₂₇₃ and since 215833 and 19273 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (215843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107916 + 107917.

It is an arithmetic number, because the mean of its divisors is an integer number (107917).

2²¹⁵⁸³³ is an apocalyptic number.

It is an amenable number.

215833 is a deficient number, since it is larger than the sum of its proper divisors (1).

215833 is an equidigital number, since it uses as much as digits as its factorization.

215833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 22.

The square root of 215833 is about 464.5783034107. The cubic root of 215833 is about 59.9845330503.

The spelling of 215833 in words is "two hundred fifteen thousand, eight hundred thirty-three".