401915841241 has 2 divisors, whose sum is σ = 401915841242. Its totient is φ = 401915841240.

The previous prime is 401915841209. The next prime is 401915841409. The reversal of 401915841241 is 142148519104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216430578841 + 185485262400 = 465221^2 + 430680^2 .

It is a cyclic number.

It is not a de Polignac number, because 401915841241 - 2⁵ = 401915841209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 401915841194 and 401915841203.

It is not a weakly prime, because it can be changed into another prime (401915841841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200957920620 + 200957920621.

It is an arithmetic number, because the mean of its divisors is an integer number (200957920621).

Almost surely, 2^401915841241 is an apocalyptic number.

It is an amenable number.

401915841241 is a deficient number, since it is larger than the sum of its proper divisors (1).

401915841241 is an equidigital number, since it uses as much as digits as its factorization.

401915841241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 401915841241 in words is "four hundred one billion, nine hundred fifteen million, eight hundred forty-one thousand, two hundred forty-one".