190820339 has 2 divisors, whose sum is σ = 190820340. Its totient is φ = 190820338.

The previous prime is 190820323. The next prime is 190820353. The reversal of 190820339 is 933028091.

It is a strong prime.

It is an emirp because it is prime and its reverse (933028091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190820339 - 2⁴ = 190820323 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 190820299 and 190820308.

It is not a weakly prime, because it can be changed into another prime (190820389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95410169 + 95410170.

It is an arithmetic number, because the mean of its divisors is an integer number (95410170).

Almost surely, 2^190820339 is an apocalyptic number.

190820339 is a deficient number, since it is larger than the sum of its proper divisors (1).

190820339 is an equidigital number, since it uses as much as digits as its factorization.

190820339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 190820339 is about 13813.7735250003. The cubic root of 190820339 is about 575.7158962146.

The spelling of 190820339 in words is "one hundred ninety million, eight hundred twenty thousand, three hundred thirty-nine".