1316685 has 16 divisors (see below), whose sum is σ = 2142720. Its totient is φ = 690240.

The previous prime is 1316677. The next prime is 1316699. The reversal of 1316685 is 5866131.

It is not a de Polignac number, because 1316685 - 2³ = 1316677 is a prime.

It is an Ulam number.

1316685 is a lucky number.

It is a congruent number.

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, 196 + ... + 1634.

It is an arithmetic number, because the mean of its divisors is an integer number (133920).

2^1316685 is an apocalyptic number.

1316685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1316685 is a deficient number, since it is larger than the sum of its proper divisors (826035).

1316685 is a wasteful number, since it uses less digits than its factorization.

1316685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508.

The product of its digits is 4320, while the sum is 30.

The square root of 1316685 is about 1147.4689538284. The cubic root of 1316685 is about 109.6042251111.

The spelling of 1316685 in words is "one million, three hundred sixteen thousand, six hundred eighty-five".