401741551 has 2 divisors, whose sum is σ = 401741552. Its totient is φ = 401741550.

The previous prime is 401741533. The next prime is 401741579. The reversal of 401741551 is 155147104.

It is an a-pointer prime, because the next prime (401741579) can be obtained adding 401741551 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401741551 - 2¹⁷ = 401610479 is a prime.

It is a super-2 number, since 2×401741551² = 322792547599771202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401741521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200870775 + 200870776.

It is an arithmetic number, because the mean of its divisors is an integer number (200870776).

Almost surely, 2^401741551 is an apocalyptic number.

401741551 is a deficient number, since it is larger than the sum of its proper divisors (1).

401741551 is an equidigital number, since it uses as much as digits as its factorization.

401741551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 401741551 is about 20043.4914872634. The cubic root of 401741551 is about 737.8740730295.

Adding to 401741551 its reverse (155147104), we get a palindrome (556888655).

The spelling of 401741551 in words is "four hundred one million, seven hundred forty-one thousand, five hundred fifty-one".