161151163 has 2 divisors, whose sum is σ = 161151164. Its totient is φ = 161151162.

The previous prime is 161151149. The next prime is 161151227. The reversal of 161151163 is 361151161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161151163 is a prime.

It is not a weakly prime, because it can be changed into another prime (161151563) 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, 80575581 + 80575582.

It is an arithmetic number, because the mean of its divisors is an integer number (80575582).

Almost surely, 2^161151163 is an apocalyptic number.

161151163 is a deficient number, since it is larger than the sum of its proper divisors (1).

161151163 is an equidigital number, since it uses as much as digits as its factorization.

161151163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 25.

The square root of 161151163 is about 12694.5327995953. The cubic root of 161151163 is about 544.1823870762.

The spelling of 161151163 in words is "one hundred sixty-one million, one hundred fifty-one thousand, one hundred sixty-three".