41201921 has 2 divisors, whose sum is σ = 41201922. Its totient is φ = 41201920.

The previous prime is 41201917. The next prime is 41201929. The reversal of 41201921 is 12910214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40462321 + 739600 = 6361^2 + 860^2 .

It is a cyclic number.

It is not a de Polignac number, because 41201921 - 2² = 41201917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 41201893 and 41201902.

It is not a weakly prime, because it can be changed into another prime (41201929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20600960 + 20600961.

It is an arithmetic number, because the mean of its divisors is an integer number (20600961).

Almost surely, 2^41201921 is an apocalyptic number.

It is an amenable number.

41201921 is a deficient number, since it is larger than the sum of its proper divisors (1).

41201921 is an equidigital number, since it uses as much as digits as its factorization.

41201921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 41201921 is about 6418.8722529740. The cubic root of 41201921 is about 345.3868684074.

The spelling of 41201921 in words is "forty-one million, two hundred one thousand, nine hundred twenty-one".