401005141 has 2 divisors, whose sum is σ = 401005142. Its totient is φ = 401005140.

The previous prime is 401005139. The next prime is 401005147. The reversal of 401005141 is 141500104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203490225 + 197514916 = 14265^2 + 14054^2 .

It is a cyclic number.

It is not a de Polignac number, because 401005141 - 2¹ = 401005139 is a prime.

Together with 401005139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401005147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200502570 + 200502571.

It is an arithmetic number, because the mean of its divisors is an integer number (200502571).

Almost surely, 2^401005141 is an apocalyptic number.

It is an amenable number.

401005141 is a deficient number, since it is larger than the sum of its proper divisors (1).

401005141 is an equidigital number, since it uses as much as digits as its factorization.

401005141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 401005141 is about 20025.1127587337. The cubic root of 401005141 is about 737.4229453537.

Adding to 401005141 its reverse (141500104), we get a palindrome (542505245).

The spelling of 401005141 in words is "four hundred one million, five thousand, one hundred forty-one".