190065839 has 2 divisors, whose sum is σ = 190065840. Its totient is φ = 190065838.

The previous prime is 190065823. The next prime is 190065893. The reversal of 190065839 is 938560091.

Together with next prime (190065893) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 190065839 - 2⁴ = 190065823 is a prime.

It is a super-2 number, since 2×190065839² = 72250046309547842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190065796 and 190065805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190065439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95032919 + 95032920.

It is an arithmetic number, because the mean of its divisors is an integer number (95032920).

Almost surely, 2^190065839 is an apocalyptic number.

190065839 is a deficient number, since it is larger than the sum of its proper divisors (1).

190065839 is an equidigital number, since it uses as much as digits as its factorization.

190065839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 190065839 is about 13786.4367767745. The cubic root of 190065839 is about 574.9561040214.

The spelling of 190065839 in words is "one hundred ninety million, sixty-five thousand, eight hundred thirty-nine".