1316771 has 4 divisors (see below), whose sum is σ = 1320000. Its totient is φ = 1313544.

The previous prime is 1316767. The next prime is 1316779. The reversal of 1316771 is 1776131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1776131 = 7 ⋅253733.

It is a cyclic number.

It is not a de Polignac number, because 1316771 - 2² = 1316767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1316771.

It is not an unprimeable number, because it can be changed into a prime (1316779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896 + ... + 1853.

It is an arithmetic number, because the mean of its divisors is an integer number (330000).

2^1316771 is an apocalyptic number.

1316771 is a deficient number, since it is larger than the sum of its proper divisors (3229).

1316771 is an equidigital number, since it uses as much as digits as its factorization.

1316771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228.

The product of its digits is 882, while the sum is 26.

The square root of 1316771 is about 1147.5064269973. The cubic root of 1316771 is about 109.6066113457.

The spelling of 1316771 in words is "one million, three hundred sixteen thousand, seven hundred seventy-one".