40579171 has 2 divisors, whose sum is σ = 40579172. Its totient is φ = 40579170.

The previous prime is 40579169. The next prime is 40579177. The reversal of 40579171 is 17197504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40579171 - 2¹ = 40579169 is a prime.

Together with 40579169, it forms a pair of twin primes.

It is equal to p_2466727 and since 40579171 and 2466727 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40579177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20289585 + 20289586.

It is an arithmetic number, because the mean of its divisors is an integer number (20289586).

Almost surely, 2^40579171 is an apocalyptic number.

40579171 is a deficient number, since it is larger than the sum of its proper divisors (1).

40579171 is an equidigital number, since it uses as much as digits as its factorization.

40579171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 40579171 is about 6370.1782549627. The cubic root of 40579171 is about 343.6379003730.

The spelling of 40579171 in words is "forty million, five hundred seventy-nine thousand, one hundred seventy-one".