161716941 has 12 divisors (see below), whose sum is σ = 234700960. Its totient is φ = 107299080.

The previous prime is 161716931. The next prime is 161716943. The reversal of 161716941 is 149617161.

It is not a de Polignac number, because 161716941 - 2⁷ = 161716813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 161716896 and 161716905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161716943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40681 + ... + 44478.

Almost surely, 2^161716941 is an apocalyptic number.

It is an amenable number.

161716941 is a deficient number, since it is larger than the sum of its proper divisors (72984019).

161716941 is a wasteful number, since it uses less digits than its factorization.

161716941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85376 (or 85373 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 161716941 is about 12716.7975921613. The cubic root of 161716941 is about 544.8184913057.

The spelling of 161716941 in words is "one hundred sixty-one million, seven hundred sixteen thousand, nine hundred forty-one".