1304531146 has 16 divisors (see below), whose sum is σ = 2070581760. Its totient is φ = 614697120.

The previous prime is 1304531131. The next prime is 1304531149. The reversal of 1304531146 is 6411354031.

It is not an unprimeable number, because it can be changed into a prime (1304531149) 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 7 ways as a sum of consecutive naturals, for example, 82611 + ... + 97126.

It is an arithmetic number, because the mean of its divisors is an integer number (129411360).

Almost surely, 2^1304531146 is an apocalyptic number.

1304531146 is a deficient number, since it is larger than the sum of its proper divisors (766050614).

1304531146 is a wasteful number, since it uses less digits than its factorization.

1304531146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179949.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1304531146 is about 36118.2937858366. The cubic root of 1304531146 is about 1092.6594281978.

Adding to 1304531146 its reverse (6411354031), we get a palindrome (7715885177).

The spelling of 1304531146 in words is "one billion, three hundred four million, five hundred thirty-one thousand, one hundred forty-six".