160091 has 2 divisors, whose sum is σ = 160092. Its totient is φ = 160090.

The previous prime is 160087. The next prime is 160093. The reversal of 160091 is 190061.

160091 = T₂₂₈ + T₂₂₉ + ... + T₂₃₃.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 160091 - 2² = 160087 is a prime.

Together with 160093, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

160091 is a strobogrammatic number because it is the same when read upside-down.

It is not a weakly prime, because it can be changed into another prime (160093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80045 + 80046.

It is an arithmetic number, because the mean of its divisors is an integer number (80046).

2¹⁶⁰⁰⁹¹ is an apocalyptic number.

160091 is a deficient number, since it is larger than the sum of its proper divisors (1).

160091 is an equidigital number, since it uses as much as digits as its factorization.

160091 is an evil number, because the sum of its binary digits is even.

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

The square root of 160091 is about 400.1137338308. The cubic root of 160091 is about 54.2986425481.

The spelling of 160091 in words is "one hundred sixty thousand, ninety-one".