1313685 has 32 divisors (see below), whose sum is σ = 2407680. Its totient is φ = 679104.

The previous prime is 1313677. The next prime is 1313699. The reversal of 1313685 is 5863131.

It is not a de Polignac number, because 1313685 - 2³ = 1313677 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4864 + ... + 5126.

It is an arithmetic number, because the mean of its divisors is an integer number (75240).

2^1313685 is an apocalyptic number.

1313685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313685 is a deficient number, since it is larger than the sum of its proper divisors (1093995).

1313685 is a wasteful number, since it uses less digits than its factorization.

1313685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 308 counting only the distinct ones).

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

The square root of 1313685 is about 1146.1609834574. The cubic root of 1313685 is about 109.5209192534.

The spelling of 1313685 in words is "one million, three hundred thirteen thousand, six hundred eighty-five".