171159489 has 12 divisors (see below), whose sum is σ = 247438672. Its totient is φ = 114010200.

The previous prime is 171159481. The next prime is 171159497. The reversal of 171159489 is 984951171.

It is a happy number.

171159489 is a `hidden beast` number, since 17 + 1 + 159 + 489 = 666.

It is an interprime number because it is at equal distance from previous prime (171159481) and next prime (171159497).

It is not a de Polignac number, because 171159489 - 2³ = 171159481 is a prime.

It is a super-2 number, since 2×171159489² = 58591141349482242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171159481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4254 + ... + 18984.

Almost surely, 2^171159489 is an apocalyptic number.

It is an amenable number.

171159489 is a deficient number, since it is larger than the sum of its proper divisors (76279183).

171159489 is a wasteful number, since it uses less digits than its factorization.

171159489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16028 (or 16025 counting only the distinct ones).

The product of its digits is 90720, while the sum is 45.

The square root of 171159489 is about 13082.7936236876. The cubic root of 171159489 is about 555.2224187661. Note that the first 3 decimals are identical.

The spelling of 171159489 in words is "one hundred seventy-one million, one hundred fifty-nine thousand, four hundred eighty-nine".