40041121 has 2 divisors, whose sum is σ = 40041122. Its totient is φ = 40041120.

The previous prime is 40041101. The next prime is 40041163. The reversal of 40041121 is 12114004.

40041121 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., 38750625 + 1290496 = 6225^2 + 1136^2 .

It is a cyclic number.

It is not a de Polignac number, because 40041121 - 2¹³ = 40032929 is a prime.

It is not a weakly prime, because it can be changed into another prime (40041101) 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, 20020560 + 20020561.

It is an arithmetic number, because the mean of its divisors is an integer number (20020561).

Almost surely, 2^40041121 is an apocalyptic number.

It is an amenable number.

40041121 is a deficient number, since it is larger than the sum of its proper divisors (1).

40041121 is an equidigital number, since it uses as much as digits as its factorization.

40041121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 40041121 is about 6327.8053857558. The cubic root of 40041121 is about 342.1123424006.

Adding to 40041121 its reverse (12114004), we get a palindrome (52155125).

The spelling of 40041121 in words is "forty million, forty-one thousand, one hundred twenty-one".