40654169 has 2 divisors, whose sum is σ = 40654170. Its totient is φ = 40654168.

The previous prime is 40654153. The next prime is 40654171. The reversal of 40654169 is 96145604.

40654169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30382144 + 10272025 = 5512^2 + 3205^2 .

It is a cyclic number.

It is not a de Polignac number, because 40654169 - 2⁴ = 40654153 is a prime.

It is a super-2 number, since 2×40654169² = 3305522914161122, which contains 22 as substring.

Together with 40654171, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (40654109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20327084 + 20327085.

It is an arithmetic number, because the mean of its divisors is an integer number (20327085).

Almost surely, 2^40654169 is an apocalyptic number.

It is an amenable number.

40654169 is a deficient number, since it is larger than the sum of its proper divisors (1).

40654169 is an equidigital number, since it uses as much as digits as its factorization.

40654169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 40654169 is about 6376.0621860205. The cubic root of 40654169 is about 343.8494727440.

The spelling of 40654169 in words is "forty million, six hundred fifty-four thousand, one hundred sixty-nine".