39875161 has 2 divisors, whose sum is σ = 39875162. Its totient is φ = 39875160.

The previous prime is 39875141. The next prime is 39875177. The reversal of 39875161 is 16157893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27931225 + 11943936 = 5285^2 + 3456^2 .

It is a cyclic number.

It is not a de Polignac number, because 39875161 - 2¹³ = 39866969 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (39875131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19937580 + 19937581.

It is an arithmetic number, because the mean of its divisors is an integer number (19937581).

Almost surely, 2^39875161 is an apocalyptic number.

It is an amenable number.

39875161 is a deficient number, since it is larger than the sum of its proper divisors (1).

39875161 is an equidigital number, since it uses as much as digits as its factorization.

39875161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 40.

The square root of 39875161 is about 6314.6782182468. The cubic root of 39875161 is about 341.6390324137.

The spelling of 39875161 in words is "thirty-nine million, eight hundred seventy-five thousand, one hundred sixty-one".