1320353547 has 8 divisors (see below), whose sum is σ = 1808051856. Its totient is φ = 856445472.

The previous prime is 1320353539. The next prime is 1320353591. The reversal of 1320353547 is 7453530231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320353547 - 2³ = 1320353539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320353347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5947428 + ... + 5947649.

It is an arithmetic number, because the mean of its divisors is an integer number (226006482).

Almost surely, 2^1320353547 is an apocalyptic number.

1320353547 is a deficient number, since it is larger than the sum of its proper divisors (487698309).

1320353547 is a wasteful number, since it uses less digits than its factorization.

1320353547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11895117.

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 1320353547 is about 36336.6694538726. The cubic root of 1320353547 is about 1097.0592379513.

Adding to 1320353547 its reverse (7453530231), we get a palindrome (8773883778).

The spelling of 1320353547 in words is "one billion, three hundred twenty million, three hundred fifty-three thousand, five hundred forty-seven".