1307321445 has 24 divisors (see below), whose sum is σ = 2115673056. Its totient is φ = 689341312.

The previous prime is 1307321419. The next prime is 1307321473. The reversal of 1307321445 is 5441237031.

It is a happy number.

It is not a de Polignac number, because 1307321445 - 2¹⁶ = 1307255909 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113314 + ... + 124316.

It is an arithmetic number, because the mean of its divisors is an integer number (88153044).

Almost surely, 2^1307321445 is an apocalyptic number.

1307321445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1307321445 is a deficient number, since it is larger than the sum of its proper divisors (808351611).

1307321445 is an equidigital number, since it uses as much as digits as its factorization.

1307321445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11189 (or 11100 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1307321445 is about 36156.9003787659. The cubic root of 1307321445 is about 1093.4379135930.

Adding to 1307321445 its reverse (5441237031), we get a palindrome (6748558476).

The spelling of 1307321445 in words is "one billion, three hundred seven million, three hundred twenty-one thousand, four hundred forty-five".