1081276 has 36 divisors (see below), whose sum is σ = 2291632. Its totient is φ = 437184.

The previous prime is 1081247. The next prime is 1081277. The reversal of 1081276 is 6721801.

1081276 = T₁₀₅ + T₁₀₆ + ... + T₁₉₆.

It is a self number, because there is not a number n which added to its sum of digits gives 1081276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14776 + ... + 14848.

2^1081276 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 1081276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1145816).

1081276 is an abundant number, since it is smaller than the sum of its proper divisors (1210356).

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

1081276 is a wasteful number, since it uses less digits than its factorization.

1081276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1081276 is about 1039.8442191021. The cubic root of 1081276 is about 102.6389469963.

The spelling of 1081276 in words is "one million, eighty-one thousand, two hundred seventy-six".