2065196539 has 4 divisors (see below), whose sum is σ = 2360224624. Its totient is φ = 1770168456.

The previous prime is 2065196521. The next prime is 2065196563. The reversal of 2065196539 is 9356915602.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2065196539 - 2¹¹ = 2065194491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2065193539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147514032 + ... + 147514045.

It is an arithmetic number, because the mean of its divisors is an integer number (590056156).

Almost surely, 2^2065196539 is an apocalyptic number.

2065196539 is a deficient number, since it is larger than the sum of its proper divisors (295028085).

2065196539 is an equidigital number, since it uses as much as digits as its factorization.

2065196539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295028084.

The product of its (nonzero) digits is 437400, while the sum is 46.

The square root of 2065196539 is about 45444.4335315119. The cubic root of 2065196539 is about 1273.4653408290.

The spelling of 2065196539 in words is "two billion, sixty-five million, one hundred ninety-six thousand, five hundred thirty-nine".