881105 has 4 divisors (see below), whose sum is σ = 1057332. Its totient is φ = 704880.

The previous prime is 881099. The next prime is 881119. The reversal of 881105 is 501188.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 368449 + 512656 = 607^2 + 716^2 .

It is not a de Polignac number, because 881105 - 2¹⁶ = 815569 is a prime.

It is a Duffinian 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, 88106 + ... + 88115.

It is an arithmetic number, because the mean of its divisors is an integer number (264333).

2⁸⁸¹¹⁰⁵ is an apocalyptic number.

It is an amenable number.

881105 is a deficient number, since it is larger than the sum of its proper divisors (176227).

881105 is a wasteful number, since it uses less digits than its factorization.

881105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176226.

The product of its (nonzero) digits is 320, while the sum is 23.

The square root of 881105 is about 938.6719341708. The cubic root of 881105 is about 95.8684903565.

Adding to 881105 its sum of digits (23), we get a triangular number (881128 = T₁₃₂₇).

The spelling of 881105 in words is "eight hundred eighty-one thousand, one hundred five".