1320832715 has 4 divisors (see below), whose sum is σ = 1584999264. Its totient is φ = 1056666168.

The previous prime is 1320832703. The next prime is 1320832759. The reversal of 1320832715 is 5172380231.

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

It is a cyclic number.

It is not a de Polignac number, because 1320832715 - 2¹⁰ = 1320831691 is a prime.

It is a super-2 number, since 2×1320832715² = 3489198122028542450, which contains 22 as substring.

It is a Duffinian number.

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, 132083267 + ... + 132083276.

It is an arithmetic number, because the mean of its divisors is an integer number (396249816).

Almost surely, 2^1320832715 is an apocalyptic number.

1320832715 is a deficient number, since it is larger than the sum of its proper divisors (264166549).

1320832715 is an equidigital number, since it uses as much as digits as its factorization.

1320832715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264166548.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1320832715 is about 36343.2623054123. The cubic root of 1320832715 is about 1097.1919327395.

The spelling of 1320832715 in words is "one billion, three hundred twenty million, eight hundred thirty-two thousand, seven hundred fifteen".