160856987 has 2 divisors, whose sum is σ = 160856988. Its totient is φ = 160856986.

The previous prime is 160856959. The next prime is 160856989. The reversal of 160856987 is 789658061.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160856987 is a prime.

Together with 160856989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (160856989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80428493 + 80428494.

It is an arithmetic number, because the mean of its divisors is an integer number (80428494).

Almost surely, 2^160856987 is an apocalyptic number.

160856987 is a deficient number, since it is larger than the sum of its proper divisors (1).

160856987 is an equidigital number, since it uses as much as digits as its factorization.

160856987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 160856987 is about 12682.9407867419. The cubic root of 160856987 is about 543.8510565334.

The spelling of 160856987 in words is "one hundred sixty million, eight hundred fifty-six thousand, nine hundred eighty-seven".