89149171 has 2 divisors, whose sum is σ = 89149172. Its totient is φ = 89149170.

The previous prime is 89149157. The next prime is 89149199. The reversal of 89149171 is 17194198.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89149171 - 2¹⁷ = 89018099 is a prime.

It is not a weakly prime, because it can be changed into another prime (89149871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44574585 + 44574586.

It is an arithmetic number, because the mean of its divisors is an integer number (44574586).

Almost surely, 2^89149171 is an apocalyptic number.

89149171 is a deficient number, since it is larger than the sum of its proper divisors (1).

89149171 is an equidigital number, since it uses as much as digits as its factorization.

89149171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 40.

The square root of 89149171 is about 9441.8838692286. The cubic root of 89149171 is about 446.7238124579.

The spelling of 89149171 in words is "eighty-nine million, one hundred forty-nine thousand, one hundred seventy-one".