40567169 has 2 divisors, whose sum is σ = 40567170. Its totient is φ = 40567168.

The previous prime is 40567159. The next prime is 40567171. The reversal of 40567169 is 96176504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40157569 + 409600 = 6337^2 + 640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40567169 is a prime.

It is a super-2 number, since 2×40567169² = 3291390401349122, which contains 22 as substring.

Together with 40567171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40567129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20283584 + 20283585.

It is an arithmetic number, because the mean of its divisors is an integer number (20283585).

Almost surely, 2^40567169 is an apocalyptic number.

It is an amenable number.

40567169 is a deficient number, since it is larger than the sum of its proper divisors (1).

40567169 is an equidigital number, since it uses as much as digits as its factorization.

40567169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 40567169 is about 6369.2361394440. The cubic root of 40567169 is about 343.6040180580.

The spelling of 40567169 in words is "forty million, five hundred sixty-seven thousand, one hundred sixty-nine".