160918091 has 4 divisors (see below), whose sum is σ = 160947072. Its totient is φ = 160889112.

The previous prime is 160918081. The next prime is 160918103. The reversal of 160918091 is 190819061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190819061 = 139 ⋅1372799.

It is a cyclic number.

It is not a de Polignac number, because 160918091 - 2¹⁴ = 160901707 is a prime.

It is a super-2 number, since 2×160918091² = 51789264022168562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160918031) 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, 3260 + ... + 18233.

It is an arithmetic number, because the mean of its divisors is an integer number (40236768).

Almost surely, 2^160918091 is an apocalyptic number.

160918091 is a deficient number, since it is larger than the sum of its proper divisors (28981).

160918091 is an equidigital number, since it uses as much as digits as its factorization.

160918091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28980.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 160918091 is about 12685.3494630617. The cubic root of 160918091 is about 543.9199112111.

The spelling of 160918091 in words is "one hundred sixty million, nine hundred eighteen thousand, ninety-one".