1044512161 has 32 divisors (see below), whose sum is σ = 1335140352. Its totient is φ = 793488960.

The previous prime is 1044512159. The next prime is 1044512173. The reversal of 1044512161 is 1612154401.

It is not a de Polignac number, because 1044512161 - 2¹ = 1044512159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1044572161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1436380 + ... + 1437106.

It is an arithmetic number, because the mean of its divisors is an integer number (41723136).

Almost surely, 2^1044512161 is an apocalyptic number.

1044512161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1044512161 is a deficient number, since it is larger than the sum of its proper divisors (290628191).

1044512161 is a wasteful number, since it uses less digits than its factorization.

1044512161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 1044512161 is about 32318.9133635399. The cubic root of 1044512161 is about 1014.6225265300.

Adding to 1044512161 its reverse (1612154401), we get a palindrome (2656666562).

The spelling of 1044512161 in words is "one billion, forty-four million, five hundred twelve thousand, one hundred sixty-one".