920832139 has 2 divisors, whose sum is σ = 920832140. Its totient is φ = 920832138.

The previous prime is 920832067. The next prime is 920832173. The reversal of 920832139 is 931238029.

920832139 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 an emirp because it is prime and its reverse (931238029) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 920832139 - 2¹¹ = 920830091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 920832098 and 920832107.

It is not a weakly prime, because it can be changed into another prime (920832179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460416069 + 460416070.

It is an arithmetic number, because the mean of its divisors is an integer number (460416070).

Almost surely, 2^920832139 is an apocalyptic number.

920832139 is a deficient number, since it is larger than the sum of its proper divisors (1).

920832139 is an equidigital number, since it uses as much as digits as its factorization.

920832139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 920832139 is about 30345.2160809575. The cubic root of 920832139 is about 972.8819730317.

The spelling of 920832139 in words is "nine hundred twenty million, eight hundred thirty-two thousand, one hundred thirty-nine".