40159871 has 2 divisors, whose sum is σ = 40159872. Its totient is φ = 40159870.

The previous prime is 40159859. The next prime is 40159883. The reversal of 40159871 is 17895104.

It is a balanced prime because it is at equal distance from previous prime (40159859) and next prime (40159883).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40159871 is a prime.

It is a super-2 number, since 2×40159871² = 3225630477473282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40159811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20079935 + 20079936.

It is an arithmetic number, because the mean of its divisors is an integer number (20079936).

Almost surely, 2^40159871 is an apocalyptic number.

40159871 is a deficient number, since it is larger than the sum of its proper divisors (1).

40159871 is an equidigital number, since it uses as much as digits as its factorization.

40159871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 40159871 is about 6337.1816290840. The cubic root of 40159871 is about 342.4502096091.

The spelling of 40159871 in words is "forty million, one hundred fifty-nine thousand, eight hundred seventy-one".