1304052345 has 16 divisors (see below), whose sum is σ = 2318315520. Its totient is φ = 695494512.

The previous prime is 1304052331. The next prime is 1304052359. The reversal of 1304052345 is 5432504031.

1304052345 is a `hidden beast` number, since 130 + 4 + 0 + 523 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1304052331) and next prime (1304052359).

It is not a de Polignac number, because 1304052345 - 2⁵ = 1304052313 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4829689 + ... + 4829958.

It is an arithmetic number, because the mean of its divisors is an integer number (144894720).

Almost surely, 2^1304052345 is an apocalyptic number.

1304052345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304052345 is a deficient number, since it is larger than the sum of its proper divisors (1014263175).

1304052345 is an equidigital number, since it uses as much as digits as its factorization.

1304052345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9659661 (or 9659655 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1304052345 is about 36111.6649436162. The cubic root of 1304052345 is about 1092.5257325408.

Adding to 1304052345 its reverse (5432504031), we get a palindrome (6736556376).

The spelling of 1304052345 in words is "one billion, three hundred four million, fifty-two thousand, three hundred forty-five".