39009161 has 2 divisors, whose sum is σ = 39009162. Its totient is φ = 39009160.

The previous prime is 39009151. The next prime is 39009181. The reversal of 39009161 is 16190093.

39009161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20647936 + 18361225 = 4544^2 + 4285^2 .

It is an emirp because it is prime and its reverse (16190093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39009161 - 2¹⁴ = 38992777 is a prime.

It is equal to p_2376920 and since 39009161 and 2376920 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (39009121) 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, 19504580 + 19504581.

It is an arithmetic number, because the mean of its divisors is an integer number (19504581).

Almost surely, 2^39009161 is an apocalyptic number.

It is an amenable number.

39009161 is a deficient number, since it is larger than the sum of its proper divisors (1).

39009161 is an equidigital number, since it uses as much as digits as its factorization.

39009161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 39009161 is about 6245.7314223396. The cubic root of 39009161 is about 339.1476951184.

The spelling of 39009161 in words is "thirty-nine million, nine thousand, one hundred sixty-one".