1391316 has 36 divisors (see below), whose sum is σ = 3435936. Its totient is φ = 437360.

The previous prime is 1391287. The next prime is 1391317. The reversal of 1391316 is 6131931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391317) 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 11 ways as a sum of consecutive naturals, for example, 19561 + ... + 19631.

2^1391316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1391316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1717968).

1391316 is an abundant number, since it is smaller than the sum of its proper divisors (2044620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1391316 is a wasteful number, since it uses less digits than its factorization.

1391316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 99 counting only the distinct ones).

The product of its digits is 486, while the sum is 24.

The square root of 1391316 is about 1179.5405885344. The cubic root of 1391316 is about 111.6371120518.

The spelling of 1391316 in words is "one million, three hundred ninety-one thousand, three hundred sixteen".