1316723 has 4 divisors (see below), whose sum is σ = 1321320. Its totient is φ = 1312128.

The previous prime is 1316717. The next prime is 1316729. The reversal of 1316723 is 3276131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1316717) and next prime (1316729).

It is a cyclic number.

It is not a de Polignac number, because 1316723 - 2¹⁴ = 1300339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1316729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838 + ... + 2451.

It is an arithmetic number, because the mean of its divisors is an integer number (330330).

2^1316723 is an apocalyptic number.

1316723 is a deficient number, since it is larger than the sum of its proper divisors (4597).

1316723 is an equidigital number, since it uses as much as digits as its factorization.

1316723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4596.

The product of its digits is 756, while the sum is 23.

The square root of 1316723 is about 1147.4855118911. The cubic root of 1316723 is about 109.6052795066.

The spelling of 1316723 in words is "one million, three hundred sixteen thousand, seven hundred twenty-three".