401163247 has 2 divisors, whose sum is σ = 401163248. Its totient is φ = 401163246.

The previous prime is 401163239. The next prime is 401163271. The reversal of 401163247 is 742361104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401163247 - 2³ = 401163239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401163047) 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, 200581623 + 200581624.

It is an arithmetic number, because the mean of its divisors is an integer number (200581624).

Almost surely, 2^401163247 is an apocalyptic number.

401163247 is a deficient number, since it is larger than the sum of its proper divisors (1).

401163247 is an equidigital number, since it uses as much as digits as its factorization.

401163247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 401163247 is about 20029.0600628187. The cubic root of 401163247 is about 737.5198482449.

The spelling of 401163247 in words is "four hundred one million, one hundred sixty-three thousand, two hundred forty-seven".