1081995 has 16 divisors (see below), whose sum is σ = 1765152. Its totient is φ = 565760.

The previous prime is 1081981. The next prime is 1082017. The reversal of 1081995 is 5991801.

It is not a de Polignac number, because 1081995 - 2⁴ = 1081979 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115 + ... + 1475.

It is an arithmetic number, because the mean of its divisors is an integer number (110322).

2^1081995 is an apocalyptic number.

1081995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1081995 is a deficient number, since it is larger than the sum of its proper divisors (683157).

1081995 is a wasteful number, since it uses less digits than its factorization.

1081995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 1081995 is about 1040.1898865111. The cubic root of 1081995 is about 102.6616920530.

The spelling of 1081995 in words is "one million, eighty-one thousand, nine hundred ninety-five".