2065519 has 4 divisors (see below), whose sum is σ = 2071296. Its totient is φ = 2059744.

The previous prime is 2065501. The next prime is 2065523. The reversal of 2065519 is 9155602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2065519 is a prime.

It is a super-2 number, since 2×2065519² = 8532737478722, which contains 22 as substring.

It is a Duffinian number.

2065519 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2314 + ... + 3079.

It is an arithmetic number, because the mean of its divisors is an integer number (517824).

2^2065519 is an apocalyptic number.

2065519 is a deficient number, since it is larger than the sum of its proper divisors (5777).

2065519 is an equidigital number, since it uses as much as digits as its factorization.

2065519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5776.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 2065519 is about 1437.1913581705. The cubic root of 2065519 is about 127.3531617255.

The spelling of 2065519 in words is "two million, sixty-five thousand, five hundred nineteen".