1304143146 has 32 divisors (see below), whose sum is σ = 2908591680. Its totient is φ = 433140048.

The previous prime is 1304143091. The next prime is 1304143153. The reversal of 1304143146 is 6413414031.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28636 + ... + 58551.

It is an arithmetic number, because the mean of its divisors is an integer number (90893490).

Almost surely, 2^1304143146 is an apocalyptic number.

1304143146 is an abundant number, since it is smaller than the sum of its proper divisors (1604448534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1304143146 is a wasteful number, since it uses less digits than its factorization.

1304143146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87475 (or 87469 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1304143146 is about 36112.9221470653. The cubic root of 1304143146 is about 1092.5510894285.

Adding to 1304143146 its reverse (6413414031), we get a palindrome (7717557177).

The spelling of 1304143146 in words is "one billion, three hundred four million, one hundred forty-three thousand, one hundred forty-six".