401641481 has 2 divisors, whose sum is σ = 401641482. Its totient is φ = 401641480.

The previous prime is 401641469. The next prime is 401641517. The reversal of 401641481 is 184146104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206899456 + 194742025 = 14384^2 + 13955^2 .

It is a cyclic number.

It is not a de Polignac number, because 401641481 - 2⁶ = 401641417 is a prime.

It is a super-2 number, since 2×401641481² = 322631758519746722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (401641421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200820740 + 200820741.

It is an arithmetic number, because the mean of its divisors is an integer number (200820741).

Almost surely, 2^401641481 is an apocalyptic number.

It is an amenable number.

401641481 is a deficient number, since it is larger than the sum of its proper divisors (1).

401641481 is an equidigital number, since it uses as much as digits as its factorization.

401641481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 401641481 is about 20040.9950102284. The cubic root of 401641481 is about 737.8128021370.

Adding to 401641481 its reverse (184146104), we get a palindrome (585787585).

The spelling of 401641481 in words is "four hundred one million, six hundred forty-one thousand, four hundred eighty-one".