1316909 has 8 divisors (see below), whose sum is σ = 1512480. Its totient is φ = 1134000.

The previous prime is 1316899. The next prime is 1316921. The reversal of 1316909 is 9096131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1316909 - 2¹² = 1312813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2942 + ... + 3359.

It is an arithmetic number, because the mean of its divisors is an integer number (189060).

2^1316909 is an apocalyptic number.

1316909 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1316909 is a deficient number, since it is larger than the sum of its proper divisors (195571).

1316909 is a wasteful number, since it uses less digits than its factorization.

1316909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6331.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 1316909 is about 1147.5665558041. The cubic root of 1316909 is about 109.6104402028.

The spelling of 1316909 in words is "one million, three hundred sixteen thousand, nine hundred nine".