1320463345 has 4 divisors (see below), whose sum is σ = 1584556020. Its totient is φ = 1056370672.

The previous prime is 1320463337. The next prime is 1320463357. The reversal of 1320463345 is 5433640231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 179104689 + 1141358656 = 13383^2 + 33784^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320463345 - 2³ = 1320463337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132046330 + ... + 132046339.

It is an arithmetic number, because the mean of its divisors is an integer number (396139005).

Almost surely, 2^1320463345 is an apocalyptic number.

It is an amenable number.

1320463345 is a deficient number, since it is larger than the sum of its proper divisors (264092675).

1320463345 is an equidigital number, since it uses as much as digits as its factorization.

1320463345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264092674.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 1320463345 is about 36338.1802653903. The cubic root of 1320463345 is about 1097.0896468701.

The spelling of 1320463345 in words is "one billion, three hundred twenty million, four hundred sixty-three thousand, three hundred forty-five".