1081312 has 12 divisors (see below), whose sum is σ = 2128896. Its totient is φ = 540640.

The previous prime is 1081307. The next prime is 1081331. The reversal of 1081312 is 2131801.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16864 + ... + 16927.

It is an arithmetic number, because the mean of its divisors is an integer number (177408).

2^1081312 is an apocalyptic number.

It is an amenable number.

1081312 is a deficient number, since it is larger than the sum of its proper divisors (1047584).

1081312 is an equidigital number, since it uses as much as digits as its factorization.

1081312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33801 (or 33793 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1081312 is about 1039.8615292432. The cubic root of 1081312 is about 102.6400860706.

The spelling of 1081312 in words is "one million, eighty-one thousand, three hundred twelve".