2065465123 has 4 divisors (see below), whose sum is σ = 2065745088. Its totient is φ = 2065185160.

The previous prime is 2065465093. The next prime is 2065465163. The reversal of 2065465123 is 3215645602.

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

It is a cyclic number.

It is not a de Polignac number, because 2065465123 - 2¹³ = 2065456931 is a prime.

It is a super-2 number, since 2×2065465123² = 8532292348658810258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2065465163) 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, 128608 + ... + 143773.

It is an arithmetic number, because the mean of its divisors is an integer number (516436272).

Almost surely, 2^2065465123 is an apocalyptic number.

2065465123 is a deficient number, since it is larger than the sum of its proper divisors (279965).

2065465123 is an equidigital number, since it uses as much as digits as its factorization.

2065465123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279964.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 2065465123 is about 45447.3885168334. The cubic root of 2065465123 is about 1273.5205442253.

The spelling of 2065465123 in words is "two billion, sixty-five million, four hundred sixty-five thousand, one hundred twenty-three".