881149 has 4 divisors (see below), whose sum is σ = 883036. Its totient is φ = 879264.

The previous prime is 881147. The next prime is 881159. The reversal of 881149 is 941188.

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 465124 + 416025 = 682^2 + 645^2 .

It is a cyclic number.

It is not a de Polignac number, because 881149 - 2¹ = 881147 is a prime.

It is a Duffinian number.

881149 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 881149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337 + ... + 1369.

It is an arithmetic number, because the mean of its divisors is an integer number (220759).

2⁸⁸¹¹⁴⁹ is an apocalyptic number.

It is an amenable number.

881149 is a deficient number, since it is larger than the sum of its proper divisors (1887).

881149 is a wasteful number, since it uses less digits than its factorization.

881149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886.

The product of its digits is 2304, while the sum is 31.

The square root of 881149 is about 938.6953712467. The cubic root of 881149 is about 95.8700861343.

The spelling of 881149 in words is "eight hundred eighty-one thousand, one hundred forty-nine".