1316189 has 6 divisors (see below), whose sum is σ = 1531134. Its totient is φ = 1128120.

The previous prime is 1316177. The next prime is 1316209. The reversal of 1316189 is 9816131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 765625 + 550564 = 875^2 + 742^2 .

It is not a de Polignac number, because 1316189 - 2¹² = 1312093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13382 + ... + 13479.

It is an arithmetic number, because the mean of its divisors is an integer number (255189).

2^1316189 is an apocalyptic number.

It is an amenable number.

1316189 is a deficient number, since it is larger than the sum of its proper divisors (214945).

1316189 is an equidigital number, since it uses as much as digits as its factorization.

1316189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26875 (or 26868 counting only the distinct ones).

The product of its digits is 1296, while the sum is 29.

The square root of 1316189 is about 1147.2528056187. The cubic root of 1316189 is about 109.5904606132.

The spelling of 1316189 in words is "one million, three hundred sixteen thousand, one hundred eighty-nine".