40855159 has 2 divisors, whose sum is σ = 40855160. Its totient is φ = 40855158.

The previous prime is 40855127. The next prime is 40855163. The reversal of 40855159 is 95155804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40855159 - 2⁵ = 40855127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40855109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20427579 + 20427580.

It is an arithmetic number, because the mean of its divisors is an integer number (20427580).

Almost surely, 2^40855159 is an apocalyptic number.

40855159 is a deficient number, since it is larger than the sum of its proper divisors (1).

40855159 is an equidigital number, since it uses as much as digits as its factorization.

40855159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 40855159 is about 6391.8040489364. The cubic root of 40855159 is about 344.4151935348.

It can be divided in two parts, 40855 and 159, that added together give a palindrome (41014).

The spelling of 40855159 in words is "forty million, eight hundred fifty-five thousand, one hundred fifty-nine".