1316385 has 48 divisors (see below), whose sum is σ = 2736000. Its totient is φ = 598752.

The previous prime is 1316363. The next prime is 1316389. The reversal of 1316385 is 5836131.

It is not a de Polignac number, because 1316385 - 2⁶ = 1316321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1316389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6516 + ... + 6714.

It is an arithmetic number, because the mean of its divisors is an integer number (57000).

2^1316385 is an apocalyptic number.

1316385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1316385 is an abundant number, since it is smaller than the sum of its proper divisors (1419615).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1316385 is a wasteful number, since it uses less digits than its factorization.

1316385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 214 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1316385 is about 1147.3382238904. The cubic root of 1316385 is about 109.5959002232.

The spelling of 1316385 in words is "one million, three hundred sixteen thousand, three hundred eighty-five".