160000091 has 4 divisors (see below), whose sum is σ = 160079712. Its totient is φ = 159920472.

The previous prime is 160000067. The next prime is 160000103. The reversal of 160000091 is 190000061.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160000091 is a prime.

160000091 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160000591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36716 + ... + 40841.

It is an arithmetic number, because the mean of its divisors is an integer number (40019928).

Almost surely, 2^160000091 is an apocalyptic number.

160000091 is a deficient number, since it is larger than the sum of its proper divisors (79621).

160000091 is an equidigital number, since it uses as much as digits as its factorization.

160000091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79620.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 160000091 is about 12649.1142377638. The cubic root of 160000091 is about 542.8836262406.

The spelling of 160000091 in words is "one hundred sixty million, ninety-one", and thus it is an aban number.