161271167 has 2 divisors, whose sum is σ = 161271168. Its totient is φ = 161271166.

The previous prime is 161271161. The next prime is 161271191. The reversal of 161271167 is 761172161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161271167 - 2¹⁶ = 161205631 is a prime.

It is a Chen prime.

It is equal to p_9041846 and since 161271167 and 9041846 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161271161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80635583 + 80635584.

It is an arithmetic number, because the mean of its divisors is an integer number (80635584).

Almost surely, 2^161271167 is an apocalyptic number.

161271167 is a deficient number, since it is larger than the sum of its proper divisors (1).

161271167 is an equidigital number, since it uses as much as digits as its factorization.

161271167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 32.

The square root of 161271167 is about 12699.2585216618. The cubic root of 161271167 is about 544.3174318353.

The spelling of 161271167 in words is "one hundred sixty-one million, two hundred seventy-one thousand, one hundred sixty-seven".