889148171 has 2 divisors, whose sum is σ = 889148172. Its totient is φ = 889148170.

The previous prime is 889148137. The next prime is 889148203. The reversal of 889148171 is 171841988.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889148171 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (889148101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444574085 + 444574086.

It is an arithmetic number, because the mean of its divisors is an integer number (444574086).

Almost surely, 2^889148171 is an apocalyptic number.

889148171 is a deficient number, since it is larger than the sum of its proper divisors (1).

889148171 is an equidigital number, since it uses as much as digits as its factorization.

889148171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 47.

The square root of 889148171 is about 29818.5876761459. The cubic root of 889148171 is about 961.5931918282.

The spelling of 889148171 in words is "eight hundred eighty-nine million, one hundred forty-eight thousand, one hundred seventy-one".