85782133 has 2 divisors, whose sum is σ = 85782134. Its totient is φ = 85782132.

The previous prime is 85782121. The next prime is 85782149. The reversal of 85782133 is 33128758.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69605649 + 16176484 = 8343^2 + 4022^2 .

It is a cyclic number.

It is not a de Polignac number, because 85782133 - 2⁹ = 85781621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85782092 and 85782101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85782163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42891066 + 42891067.

It is an arithmetic number, because the mean of its divisors is an integer number (42891067).

Almost surely, 2^85782133 is an apocalyptic number.

It is an amenable number.

85782133 is a deficient number, since it is larger than the sum of its proper divisors (1).

85782133 is an equidigital number, since it uses as much as digits as its factorization.

85782133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 85782133 is about 9261.8644451320. The cubic root of 85782133 is about 441.0274422757.

The spelling of 85782133 in words is "eighty-five million, seven hundred eighty-two thousand, one hundred thirty-three".