160291 has 4 divisors (see below), whose sum is σ = 162400. Its totient is φ = 158184.
The previous prime is 160253. The next prime is 160309. The reversal of 160291 is 192061.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192061 = 149 ⋅1289.
It is a 3-Lehmer number, since φ(160291) divides (160291-1)3.
It is a cyclic number.
It is not a de Polignac number, because 160291 - 27 = 160163 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (160201) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 936 + ... + 1093.
It is an arithmetic number, because the mean of its divisors is an integer number (40600).
2160291 is an apocalyptic number.
160291 is a deficient number, since it is larger than the sum of its proper divisors (2109).
160291 is an equidigital number, since it uses as much as digits as its factorization.
160291 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2108.
The product of its (nonzero) digits is 108, while the sum is 19.
The square root of 160291 is about 400.3635847577. The cubic root of 160291 is about 54.3212447125.
The spelling of 160291 in words is "one hundred sixty thousand, two hundred ninety-one".
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