2065940143 has 4 divisors (see below), whose sum is σ = 2066031880. Its totient is φ = 2065848408.

The previous prime is 2065940137. The next prime is 2065940183. The reversal of 2065940143 is 3410495602.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2065940143 - 2²⁹ = 1529069231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2065940099 and 2065940108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065940183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13696 + ... + 65722.

It is an arithmetic number, because the mean of its divisors is an integer number (516507970).

Almost surely, 2^2065940143 is an apocalyptic number.

2065940143 is a deficient number, since it is larger than the sum of its proper divisors (91737).

2065940143 is an equidigital number, since it uses as much as digits as its factorization.

2065940143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91736.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 2065940143 is about 45452.6142592481. The cubic root of 2065940143 is about 1273.6181657170.

The spelling of 2065940143 in words is "two billion, sixty-five million, nine hundred forty thousand, one hundred forty-three".