401543371 has 2 divisors, whose sum is σ = 401543372. Its totient is φ = 401543370.

The previous prime is 401543273. The next prime is 401543399. The reversal of 401543371 is 173345104.

It is an a-pointer prime, because the next prime (401543399) can be obtained adding 401543371 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401543371 - 2⁷ = 401543243 is a prime.

It is a super-2 number, since 2×401543371² = 322474157588087282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401543171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200771685 + 200771686.

It is an arithmetic number, because the mean of its divisors is an integer number (200771686).

Almost surely, 2^401543371 is an apocalyptic number.

401543371 is a deficient number, since it is larger than the sum of its proper divisors (1).

401543371 is an equidigital number, since it uses as much as digits as its factorization.

401543371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 401543371 is about 20038.5471279731. The cubic root of 401543371 is about 737.7527214329.

Adding to 401543371 its reverse (173345104), we get a palindrome (574888475).

The spelling of 401543371 in words is "four hundred one million, five hundred forty-three thousand, three hundred seventy-one".