1144105165 has 12 divisors (see below), whose sum is σ = 1597077756. Its totient is φ = 784529088.

The previous prime is 1144105133. The next prime is 1144105181. The reversal of 1144105165 is 5615014411.

It can be written as a sum of positive squares in 2 ways, for example, as 587286756 + 556818409 = 24234^2 + 23597^2 .

It is not a de Polignac number, because 1144105165 - 2⁵ = 1144105133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2334664 + ... + 2335153.

It is an arithmetic number, because the mean of its divisors is an integer number (133089813).

Almost surely, 2^1144105165 is an apocalyptic number.

It is an amenable number.

1144105165 is a deficient number, since it is larger than the sum of its proper divisors (452972591).

1144105165 is an equidigital number, since it uses as much as digits as its factorization.

1144105165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4669836 (or 4669829 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 1144105165 is about 33824.6236490519. The cubic root of 1144105165 is about 1045.8963532479.

Adding to 1144105165 its reverse (5615014411), we get a palindrome (6759119576).

The spelling of 1144105165 in words is "one billion, one hundred forty-four million, one hundred five thousand, one hundred sixty-five".