40791061 has 2 divisors, whose sum is σ = 40791062. Its totient is φ = 40791060.

The previous prime is 40791059. The next prime is 40791067. The reversal of 40791061 is 16019704.

40791061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37442161 + 3348900 = 6119^2 + 1830^2 .

It is a cyclic number.

It is not a de Polignac number, because 40791061 - 2¹ = 40791059 is a prime.

Together with 40791059, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40791067) 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, 20395530 + 20395531.

It is an arithmetic number, because the mean of its divisors is an integer number (20395531).

Almost surely, 2^40791061 is an apocalyptic number.

It is an amenable number.

40791061 is a deficient number, since it is larger than the sum of its proper divisors (1).

40791061 is an equidigital number, since it uses as much as digits as its factorization.

40791061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 40791061 is about 6386.7880033707. The cubic root of 40791061 is about 344.2349806320.

The spelling of 40791061 in words is "forty million, seven hundred ninety-one thousand, sixty-one".