41521993 has 2 divisors, whose sum is σ = 41521994. Its totient is φ = 41521992.

The previous prime is 41521981. The next prime is 41521999. The reversal of 41521993 is 39912514.

41521993 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., 37847104 + 3674889 = 6152^2 + 1917^2 .

It is a cyclic number.

It is not a de Polignac number, because 41521993 - 2²¹ = 39424841 is a prime.

It is not a weakly prime, because it can be changed into another prime (41521999) 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, 20760996 + 20760997.

It is an arithmetic number, because the mean of its divisors is an integer number (20760997).

Almost surely, 2^41521993 is an apocalyptic number.

It is an amenable number.

41521993 is a deficient number, since it is larger than the sum of its proper divisors (1).

41521993 is an equidigital number, since it uses as much as digits as its factorization.

41521993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 34.

The square root of 41521993 is about 6443.7561251183. The cubic root of 41521993 is about 346.2789274098.

The spelling of 41521993 in words is "forty-one million, five hundred twenty-one thousand, nine hundred ninety-three".