1320585 has 16 divisors (see below), whose sum is σ = 2414976. Its totient is φ = 603648.

The previous prime is 1320541. The next prime is 1320607. The reversal of 1320585 is 5850231.

It is not a de Polignac number, because 1320585 - 2¹⁰ = 1319561 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6184 + ... + 6393.

It is an arithmetic number, because the mean of its divisors is an integer number (150936).

2^1320585 is an apocalyptic number.

1320585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1320585 is a deficient number, since it is larger than the sum of its proper divisors (1094391).

1320585 is a wasteful number, since it uses less digits than its factorization.

1320585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12592.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1320585 is about 1149.1670896784. The cubic root of 1320585 is about 109.7123337656.

The spelling of 1320585 in words is "one million, three hundred twenty thousand, five hundred eighty-five".