40875641 has 2 divisors, whose sum is σ = 40875642. Its totient is φ = 40875640.

The previous prime is 40875629. The next prime is 40875643. The reversal of 40875641 is 14657804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26214400 + 14661241 = 5120^2 + 3829^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40875641 is a prime.

Together with 40875643, 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 (40875643) 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, 20437820 + 20437821.

It is an arithmetic number, because the mean of its divisors is an integer number (20437821).

Almost surely, 2^40875641 is an apocalyptic number.

It is an amenable number.

40875641 is a deficient number, since it is larger than the sum of its proper divisors (1).

40875641 is an equidigital number, since it uses as much as digits as its factorization.

40875641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 40875641 is about 6393.4060562426. The cubic root of 40875641 is about 344.4727393760.

The spelling of 40875641 in words is "forty million, eight hundred seventy-five thousand, six hundred forty-one".