40861159 has 4 divisors (see below), whose sum is σ = 40916320. Its totient is φ = 40806000.

The previous prime is 40861151. The next prime is 40861187. The reversal of 40861159 is 95116804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40861159 - 2³ = 40861151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40861151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26454 + ... + 27955.

It is an arithmetic number, because the mean of its divisors is an integer number (10229080).

Almost surely, 2^40861159 is an apocalyptic number.

40861159 is a deficient number, since it is larger than the sum of its proper divisors (55161).

40861159 is an equidigital number, since it uses as much as digits as its factorization.

40861159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55160.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 40861159 is about 6392.2733827645. The cubic root of 40861159 is about 344.4320530132.

The spelling of 40861159 in words is "forty million, eight hundred sixty-one thousand, one hundred fifty-nine".