39161 has 2 divisors, whose sum is σ = 39162. Its totient is φ = 39160.

The previous prime is 39157. The next prime is 39163. The reversal of 39161 is 16193.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32761 + 6400 = 181^2 + 80^2 .

It is an emirp because it is prime and its reverse (16193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39161 - 2² = 39157 is a prime.

Together with 39163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19580 + 19581.

It is an arithmetic number, because the mean of its divisors is an integer number (19581).

2³⁹¹⁶¹ is an apocalyptic number.

39161 is the 89-th centered decagonal number.

It is an amenable number.

39161 is a deficient number, since it is larger than the sum of its proper divisors (1).

39161 is an equidigital number, since it uses as much as digits as its factorization.

39161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 20.

The square root of 39161 is about 197.8913843501. The cubic root of 39161 is about 33.9587157505.

The spelling of 39161 in words is "thirty-nine thousand, one hundred sixty-one".