1304112345 has 16 divisors (see below), whose sum is σ = 2087119680. Its totient is φ = 695346624.

The previous prime is 1304112263. The next prime is 1304112349. The reversal of 1304112345 is 5432114031.

It is a happy number.

It is not a de Polignac number, because 1304112345 - 2⁷ = 1304112217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1304112349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65586 + ... + 83124.

It is an arithmetic number, because the mean of its divisors is an integer number (130444980).

Almost surely, 2^1304112345 is an apocalyptic number.

1304112345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304112345 is a deficient number, since it is larger than the sum of its proper divisors (783007335).

1304112345 is a wasteful number, since it uses less digits than its factorization.

1304112345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22504.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1304112345 is about 36112.4956905501. The cubic root of 1304112345 is about 1092.5424881409.

Adding to 1304112345 its reverse (5432114031), we get a palindrome (6736226376).

The spelling of 1304112345 in words is "one billion, three hundred four million, one hundred twelve thousand, three hundred forty-five".