411021601 has 2 divisors, whose sum is σ = 411021602. Its totient is φ = 411021600.

The previous prime is 411021593. The next prime is 411021619. The reversal of 411021601 is 106120114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232532001 + 178489600 = 15249^2 + 13360^2 .

It is a cyclic number.

It is not a de Polignac number, because 411021601 - 2³ = 411021593 is a prime.

It is not a weakly prime, because it can be changed into another prime (411021691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205510800 + 205510801.

It is an arithmetic number, because the mean of its divisors is an integer number (205510801).

Almost surely, 2^411021601 is an apocalyptic number.

It is an amenable number.

411021601 is a deficient number, since it is larger than the sum of its proper divisors (1).

411021601 is an equidigital number, since it uses as much as digits as its factorization.

411021601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 411021601 is about 20273.6676750903. The cubic root of 411021601 is about 743.5123993430.

Adding to 411021601 its reverse (106120114), we get a palindrome (517141715).

The spelling of 411021601 in words is "four hundred eleven million, twenty-one thousand, six hundred one".