401651743 has 2 divisors, whose sum is σ = 401651744. Its totient is φ = 401651742.

The previous prime is 401651681. The next prime is 401651753. The reversal of 401651743 is 347156104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401651743 is a prime.

It is a super-2 number, since 2×401651743² = 322648245309876098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401651753) 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, 200825871 + 200825872.

It is an arithmetic number, because the mean of its divisors is an integer number (200825872).

Almost surely, 2^401651743 is an apocalyptic number.

401651743 is a deficient number, since it is larger than the sum of its proper divisors (1).

401651743 is an equidigital number, since it uses as much as digits as its factorization.

401651743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 401651743 is about 20041.2510338052. The cubic root of 401651743 is about 737.8190858260.

The spelling of 401651743 in words is "four hundred one million, six hundred fifty-one thousand, seven hundred forty-three".