1316643 has 8 divisors (see below), whose sum is σ = 1848000. Its totient is φ = 831528.

The previous prime is 1316639. The next prime is 1316647. The reversal of 1316643 is 3466131.

It is an interprime number because it is at equal distance from previous prime (1316639) and next prime (1316647).

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

It is not a de Polignac number, because 1316643 - 2² = 1316639 is a prime.

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, 11493 + ... + 11606.

It is an arithmetic number, because the mean of its divisors is an integer number (231000).

2^1316643 is an apocalyptic number.

1316643 is a deficient number, since it is larger than the sum of its proper divisors (531357).

1316643 is a wasteful number, since it uses less digits than its factorization.

1316643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23121.

The product of its digits is 1296, while the sum is 24.

The square root of 1316643 is about 1147.4506525337. The cubic root of 1316643 is about 109.6030597029.

The spelling of 1316643 in words is "one million, three hundred sixteen thousand, six hundred forty-three".