1161061204 has 18 divisors (see below), whose sum is σ = 2060109870. Its totient is φ = 572567616.

The previous prime is 1161061201. The next prime is 1161061249. The reversal of 1161061204 is 4021601611.

It can be written as a sum of positive squares in 3 ways, for example, as 353364804 + 807696400 = 18798^2 + 28420^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161061201) 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 5 ways as a sum of consecutive naturals, for example, 5919 + ... + 48550.

Almost surely, 2^1161061204 is an apocalyptic number.

It is an amenable number.

1161061204 is a deficient number, since it is larger than the sum of its proper divisors (899048666).

1161061204 is an equidigital number, since it uses as much as digits as its factorization.

1161061204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54619 (or 54544 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1161061204 is about 34074.3481815867. The cubic root of 1161061204 is about 1051.0378865232.

Adding to 1161061204 its reverse (4021601611), we get a palindrome (5182662815).

The spelling of 1161061204 in words is "one billion, one hundred sixty-one million, sixty-one thousand, two hundred four".