1161344164 has 12 divisors (see below), whose sum is σ = 2032674588. Its totient is φ = 580580000.

The previous prime is 1161344131. The next prime is 1161344167. The reversal of 1161344164 is 4614431611.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 487526400 + 673817764 = 22080^2 + 25958^2 .

It is not an unprimeable number, because it can be changed into a prime (1161344167) 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, 10914 + ... + 49414.

It is an arithmetic number, because the mean of its divisors is an integer number (169389549).

Almost surely, 2^1161344164 is an apocalyptic number.

It is an amenable number.

1161344164 is a deficient number, since it is larger than the sum of its proper divisors (871330424).

1161344164 is a wasteful number, since it uses less digits than its factorization.

1161344164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46046 (or 46044 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 1161344164 is about 34078.5000256760. The cubic root of 1161344164 is about 1051.1232617308.

Adding to 1161344164 its reverse (4614431611), we get a palindrome (5775775775).

The spelling of 1161344164 in words is "one billion, one hundred sixty-one million, three hundred forty-four thousand, one hundred sixty-four".