1065144305 has 4 divisors (see below), whose sum is σ = 1278173172. Its totient is φ = 852115440.

The previous prime is 1065144259. The next prime is 1065144307. The reversal of 1065144305 is 5034415601.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 115949824 + 949194481 = 10768^2 + 30809^2 .

It is not a de Polignac number, because 1065144305 - 2²⁰ = 1064095729 is a prime.

It is a super-2 number, since 2×1065144305² = 2269064780947866050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1065144307) 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, 106514426 + ... + 106514435.

It is an arithmetic number, because the mean of its divisors is an integer number (319543293).

Almost surely, 2^1065144305 is an apocalyptic number.

It is an amenable number.

1065144305 is a deficient number, since it is larger than the sum of its proper divisors (213028867).

1065144305 is an equidigital number, since it uses as much as digits as its factorization.

1065144305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213028866.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1065144305 is about 32636.5486073512. The cubic root of 1065144305 is about 1021.2595950492.

Adding to 1065144305 its reverse (5034415601), we get a palindrome (6099559906).

The spelling of 1065144305 in words is "one billion, sixty-five million, one hundred forty-four thousand, three hundred five".