401242063 has 2 divisors, whose sum is σ = 401242064. Its totient is φ = 401242062.

The previous prime is 401242033. The next prime is 401242069. The reversal of 401242063 is 360242104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401242063 - 2⁹ = 401241551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401242069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200621031 + 200621032.

It is an arithmetic number, because the mean of its divisors is an integer number (200621032).

Almost surely, 2^401242063 is an apocalyptic number.

401242063 is a deficient number, since it is larger than the sum of its proper divisors (1).

401242063 is an equidigital number, since it uses as much as digits as its factorization.

401242063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 401242063 is about 20031.0275073447. The cubic root of 401242063 is about 737.5681449241.

Adding to 401242063 its reverse (360242104), we get a palindrome (761484167).

The spelling of 401242063 in words is "four hundred one million, two hundred forty-two thousand, sixty-three".