1316649 has 8 divisors (see below), whose sum is σ = 1772992. Its totient is φ = 869040.

The previous prime is 1316647. The next prime is 1316657. The reversal of 1316649 is 9466131.

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

It is not a de Polignac number, because 1316649 - 2¹ = 1316647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1316647) 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, 1822 + ... + 2439.

It is an arithmetic number, because the mean of its divisors is an integer number (221624).

2^1316649 is an apocalyptic number.

It is an amenable number.

1316649 is a deficient number, since it is larger than the sum of its proper divisors (456343).

1316649 is a wasteful number, since it uses less digits than its factorization.

1316649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367.

The product of its digits is 3888, while the sum is 30.

The square root of 1316649 is about 1147.4532670222. The cubic root of 1316649 is about 109.6032261913.

The spelling of 1316649 in words is "one million, three hundred sixteen thousand, six hundred forty-nine".