171164889 has 45 divisors (see below), whose sum is σ = 291704543. Its totient is φ = 96709536.

The previous prime is 171164887. The next prime is 171164899. The reversal of 171164889 is 988461171.

It is a happy number.

The square root of 171164889 is 13083.

It is a perfect power (a square), and thus also a powerful number.

171164889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 32867289 + 138297600 = 5733^2 + 11760^2 .

It is not a de Polignac number, because 171164889 - 2¹ = 171164887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171164887) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1923157 + ... + 1923245.

Almost surely, 2^171164889 is an apocalyptic number.

171164889 is the 13083-rd square number.

171164889 is the 6542-nd centered octagonal number.

It is an amenable number.

171164889 is a deficient number, since it is larger than the sum of its proper divisors (120539654).

171164889 is an frugal number, since it uses more digits than its factorization.

171164889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 99 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The cubic root of 171164889 is about 555.2282577052.

The spelling of 171164889 in words is "one hundred seventy-one million, one hundred sixty-four thousand, eight hundred eighty-nine".