161300585 has 4 divisors (see below), whose sum is σ = 193560708. Its totient is φ = 129040464.

The previous prime is 161300551. The next prime is 161300597. The reversal of 161300585 is 585003161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106584976 + 54715609 = 10324^2 + 7397^2 .

It is a cyclic number.

It is not a de Polignac number, because 161300585 - 2¹⁰ = 161299561 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16130054 + ... + 16130063.

It is an arithmetic number, because the mean of its divisors is an integer number (48390177).

Almost surely, 2^161300585 is an apocalyptic number.

It is an amenable number.

161300585 is a deficient number, since it is larger than the sum of its proper divisors (32260123).

161300585 is an equidigital number, since it uses as much as digits as its factorization.

161300585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32260122.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 161300585 is about 12700.4167254465. The cubic root of 161300585 is about 544.3505267296.

The spelling of 161300585 in words is "one hundred sixty-one million, three hundred thousand, five hundred eighty-five".