1304003144 has 8 divisors (see below), whose sum is σ = 2445005910. Its totient is φ = 652001568.

The previous prime is 1304003143. The next prime is 1304003153. The reversal of 1304003144 is 4413004031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1166222500 + 137780644 = 34150^2 + 11738^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1304003143) 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, 81500189 + ... + 81500204.

Almost surely, 2^1304003144 is an apocalyptic number.

It is an amenable number.

1304003144 is a deficient number, since it is larger than the sum of its proper divisors (1141002766).

1304003144 is a wasteful number, since it uses less digits than its factorization.

1304003144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163000399 (or 163000395 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1304003144 is about 36110.9837030231. The cubic root of 1304003144 is about 1092.5119922860.

Adding to 1304003144 its reverse (4413004031), we get a palindrome (5717007175).

The spelling of 1304003144 in words is "one billion, three hundred four million, three thousand, one hundred forty-four".