160989117 has 4 divisors (see below), whose sum is σ = 214652160. Its totient is φ = 107326076.

The previous prime is 160989113. The next prime is 160989131. The reversal of 160989117 is 711989061.

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 160989117 - 2² = 160989113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160989113) 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, 26831517 + ... + 26831522.

It is an arithmetic number, because the mean of its divisors is an integer number (53663040).

Almost surely, 2^160989117 is an apocalyptic number.

It is an amenable number.

160989117 is a deficient number, since it is larger than the sum of its proper divisors (53663043).

160989117 is an equidigital number, since it uses as much as digits as its factorization.

160989117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53663042.

The product of its (nonzero) digits is 27216, while the sum is 42.

The square root of 160989117 is about 12688.1486829246. The cubic root of 160989117 is about 543.9999245332. Note that the first 4 decimals are identical.

The spelling of 160989117 in words is "one hundred sixty million, nine hundred eighty-nine thousand, one hundred seventeen".