38816161 has 2 divisors, whose sum is σ = 38816162. Its totient is φ = 38816160.

The previous prime is 38816131. The next prime is 38816171. The reversal of 38816161 is 16161883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38750625 + 65536 = 6225^2 + 256^2 .

It is a cyclic number.

It is not a de Polignac number, because 38816161 - 2⁷ = 38816033 is a prime.

It is not a weakly prime, because it can be changed into another prime (38816131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19408080 + 19408081.

It is an arithmetic number, because the mean of its divisors is an integer number (19408081).

Almost surely, 2^38816161 is an apocalyptic number.

It is an amenable number.

38816161 is a deficient number, since it is larger than the sum of its proper divisors (1).

38816161 is an equidigital number, since it uses as much as digits as its factorization.

38816161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 34.

The square root of 38816161 is about 6230.2617119989. The cubic root of 38816161 is about 338.5874527768.

The spelling of 38816161 in words is "thirty-eight million, eight hundred sixteen thousand, one hundred sixty-one".