160827991 has 2 divisors, whose sum is σ = 160827992. Its totient is φ = 160827990.

The previous prime is 160827977. The next prime is 160828033. The reversal of 160827991 is 199728061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 160827991 - 2⁵ = 160827959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160827971) 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 as a sum of consecutive naturals, namely, 80413995 + 80413996.

It is an arithmetic number, because the mean of its divisors is an integer number (80413996).

Almost surely, 2^160827991 is an apocalyptic number.

160827991 is a deficient number, since it is larger than the sum of its proper divisors (1).

160827991 is an equidigital number, since it uses as much as digits as its factorization.

160827991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 160827991 is about 12681.7976249426. The cubic root of 160827991 is about 543.8183764632.

The spelling of 160827991 in words is "one hundred sixty million, eight hundred twenty-seven thousand, nine hundred ninety-one".