1181322004 has 6 divisors (see below), whose sum is σ = 2067313514. Its totient is φ = 590661000.

The previous prime is 1181321983. The next prime is 1181322007. The reversal of 1181322004 is 4002231811.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1173199504 + 8122500 = 34252^2 + 2850^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1181322007) 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 as a sum of consecutive naturals, namely, 147665247 + ... + 147665254.

Almost surely, 2^1181322004 is an apocalyptic number.

It is an amenable number.

1181322004 is a deficient number, since it is larger than the sum of its proper divisors (885991510).

1181322004 is a wasteful number, since it uses less digits than its factorization.

1181322004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295330505 (or 295330503 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1181322004 is about 34370.3652002710. The cubic root of 1181322004 is about 1057.1162880484.

Adding to 1181322004 its reverse (4002231811), we get a palindrome (5183553815).

The spelling of 1181322004 in words is "one billion, one hundred eighty-one million, three hundred twenty-two thousand, four".