1081172 has 12 divisors (see below), whose sum is σ = 1913940. Its totient is φ = 534336.

The previous prime is 1081163. The next prime is 1081219. The reversal of 1081172 is 2711801.

It can be written as a sum of positive squares in 2 ways, for example, as 568516 + 512656 = 754^2 + 716^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 1163 + ... + 1874.

It is an arithmetic number, because the mean of its divisors is an integer number (159495).

2^1081172 is an apocalyptic number.

It is an amenable number.

1081172 is a deficient number, since it is larger than the sum of its proper divisors (832768).

1081172 is a wasteful number, since it uses less digits than its factorization.

1081172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130 (or 3128 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 1081172 is about 1039.7942104090. The cubic root of 1081172 is about 102.6356561952.

Adding to 1081172 its reverse (2711801), we get a palindrome (3792973).

The spelling of 1081172 in words is "one million, eighty-one thousand, one hundred seventy-two".