161300161 has 8 divisors (see below), whose sum is σ = 181640448. Its totient is φ = 141906000.

The previous prime is 161300149. The next prime is 161300179. The reversal of 161300161 is 161003161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161300161 - 2²³ = 152911553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161300261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236170 + ... + 236851.

It is an arithmetic number, because the mean of its divisors is an integer number (22705056).

Almost surely, 2^161300161 is an apocalyptic number.

161300161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

161300161 is a deficient number, since it is larger than the sum of its proper divisors (20340287).

161300161 is a wasteful number, since it uses less digits than its factorization.

161300161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473063.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 161300161 is about 12700.4000330698. The cubic root of 161300161 is about 544.3500497633.

The spelling of 161300161 in words is "one hundred sixty-one million, three hundred thousand, one hundred sixty-one".