161104271 has 2 divisors, whose sum is σ = 161104272. Its totient is φ = 161104270.

The previous prime is 161104133. The next prime is 161104283. The reversal of 161104271 is 172401161.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161104271 - 2¹⁴ = 161087887 is a prime.

It is a super-2 number, since 2×161104271² = 51909172268882882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161104571) 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, 80552135 + 80552136.

It is an arithmetic number, because the mean of its divisors is an integer number (80552136).

Almost surely, 2^161104271 is an apocalyptic number.

161104271 is a deficient number, since it is larger than the sum of its proper divisors (1).

161104271 is an equidigital number, since it uses as much as digits as its factorization.

161104271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 161104271 is about 12692.6857284028. The cubic root of 161104271 is about 544.1295996281.

The spelling of 161104271 in words is "one hundred sixty-one million, one hundred four thousand, two hundred seventy-one".