161082089 has 16 divisors (see below), whose sum is σ = 195302016. Its totient is φ = 129696000.

The previous prime is 161082049. The next prime is 161082091. The reversal of 161082089 is 980280161.

It is a de Polignac number, because none of the positive numbers 2^k-161082089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161082049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82454 + ... + 84384.

It is an arithmetic number, because the mean of its divisors is an integer number (12206376).

Almost surely, 2^161082089 is an apocalyptic number.

It is an amenable number.

161082089 is a deficient number, since it is larger than the sum of its proper divisors (34219927).

161082089 is a wasteful number, since it uses less digits than its factorization.

161082089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 161082089 is about 12691.8118879851. The cubic root of 161082089 is about 544.1046252503.

The spelling of 161082089 in words is "one hundred sixty-one million, eighty-two thousand, eighty-nine".