885181 has 4 divisors (see below), whose sum is σ = 965664. Its totient is φ = 804700.

The previous prime is 885169. The next prime is 885187. The reversal of 885181 is 181588.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 885181 - 2⁹ = 884669 is a prime.

It is a super-2 number, since 2×885181² = 1567090805522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (885187) by changing a digit.

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, 40225 + ... + 40246.

It is an arithmetic number, because the mean of its divisors is an integer number (241416).

2⁸⁸⁵¹⁸¹ is an apocalyptic number.

It is an amenable number.

885181 is a deficient number, since it is larger than the sum of its proper divisors (80483).

885181 is a wasteful number, since it uses less digits than its factorization.

885181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80482.

The product of its digits is 2560, while the sum is 31.

The square root of 885181 is about 940.8405816077. The cubic root of 885181 is about 96.0160924990.

The spelling of 885181 in words is "eight hundred eighty-five thousand, one hundred eighty-one".