1304051403 has 8 divisors (see below), whose sum is σ = 1739132928. Its totient is φ = 869168744.

The previous prime is 1304051393. The next prime is 1304051423. The reversal of 1304051403 is 3041504031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1304051403 - 2⁴ = 1304051387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1304051403.

It is not an unprimeable number, because it can be changed into a prime (1304051423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33675 + ... + 61172.

It is an arithmetic number, because the mean of its divisors is an integer number (217391616).

Almost surely, 2^1304051403 is an apocalyptic number.

1304051403 is a deficient number, since it is larger than the sum of its proper divisors (435081525).

1304051403 is an equidigital number, since it uses as much as digits as its factorization.

1304051403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99433.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1304051403 is about 36111.6519007370. The cubic root of 1304051403 is about 1092.5254694738.

Adding to 1304051403 its reverse (3041504031), we get a palindrome (4345555434).

The spelling of 1304051403 in words is "one billion, three hundred four million, fifty-one thousand, four hundred three".