810033139 has 2 divisors, whose sum is σ = 810033140. Its totient is φ = 810033138.

The previous prime is 810033047. The next prime is 810033143. The reversal of 810033139 is 931330018.

810033139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 810033139 - 2⁹ = 810032627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (810033199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405016569 + 405016570.

It is an arithmetic number, because the mean of its divisors is an integer number (405016570).

Almost surely, 2^810033139 is an apocalyptic number.

810033139 is a deficient number, since it is larger than the sum of its proper divisors (1).

810033139 is an equidigital number, since it uses as much as digits as its factorization.

810033139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 810033139 is about 28461.0811284463. The cubic root of 810033139 is about 932.1824640298.

The spelling of 810033139 in words is "eight hundred ten million, thirty-three thousand, one hundred thirty-nine".