1323591285 has 16 divisors (see below), whose sum is σ = 2121065280. Its totient is φ = 704808960.

The previous prime is 1323591239. The next prime is 1323591293. The reversal of 1323591285 is 5821953231.

It is not a de Polignac number, because 1323591285 - 2⁹ = 1323590773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59215 + ... + 78444.

It is an arithmetic number, because the mean of its divisors is an integer number (132566580).

Almost surely, 2^1323591285 is an apocalyptic number.

1323591285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1323591285 is a deficient number, since it is larger than the sum of its proper divisors (797473995).

1323591285 is a wasteful number, since it uses less digits than its factorization.

1323591285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138308.

The product of its digits is 64800, while the sum is 39.

The square root of 1323591285 is about 36381.1941117935. The cubic root of 1323591285 is about 1097.9552330612.

The spelling of 1323591285 in words is "one billion, three hundred twenty-three million, five hundred ninety-one thousand, two hundred eighty-five".