881871161 has 4 divisors (see below), whose sum is σ = 883344000. Its totient is φ = 880398324.

The previous prime is 881871139. The next prime is 881871163. The reversal of 881871161 is 161178188.

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 881871161 - 2²² = 877676857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (881871163) 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, 735521 + ... + 736718.

It is an arithmetic number, because the mean of its divisors is an integer number (220836000).

Almost surely, 2^881871161 is an apocalyptic number.

It is an amenable number.

881871161 is a deficient number, since it is larger than the sum of its proper divisors (1472839).

881871161 is a wasteful number, since it uses less digits than its factorization.

881871161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472838.

The product of its digits is 21504, while the sum is 41.

The square root of 881871161 is about 29696.3156132204. The cubic root of 881871161 is about 958.9626964845.

The spelling of 881871161 in words is "eight hundred eighty-one million, eight hundred seventy-one thousand, one hundred sixty-one".