161471 has 2 divisors, whose sum is σ = 161472. Its totient is φ = 161470.

The previous prime is 161461. The next prime is 161503. The reversal of 161471 is 174161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161471 - 2⁶ = 161407 is a prime.

It is a super-3 number, since 3×161471³ = 12630043880070333, which contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161411) 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, 80735 + 80736.

It is an arithmetic number, because the mean of its divisors is an integer number (80736).

2¹⁶¹⁴⁷¹ is an apocalyptic number.

161471 is a deficient number, since it is larger than the sum of its proper divisors (1).

161471 is an equidigital number, since it uses as much as digits as its factorization.

161471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168, while the sum is 20.

The square root of 161471 is about 401.8345430647. The cubic root of 161471 is about 54.4542162416.

The spelling of 161471 in words is "one hundred sixty-one thousand, four hundred seventy-one".