401641117 has 2 divisors, whose sum is σ = 401641118. Its totient is φ = 401641116.

The previous prime is 401641091. The next prime is 401641127. The reversal of 401641117 is 711146104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369446841 + 32194276 = 19221^2 + 5674^2 .

It is a cyclic number.

It is not a de Polignac number, because 401641117 - 2⁷ = 401640989 is a prime.

It is a super-2 number, since 2×401641117² = 322631173730015378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401641091 and 401641100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401641127) 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, 200820558 + 200820559.

It is an arithmetic number, because the mean of its divisors is an integer number (200820559).

Almost surely, 2^401641117 is an apocalyptic number.

It is an amenable number.

401641117 is a deficient number, since it is larger than the sum of its proper divisors (1).

401641117 is an equidigital number, since it uses as much as digits as its factorization.

401641117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 401641117 is about 20040.9859288409. The cubic root of 401641117 is about 737.8125792484.

The spelling of 401641117 in words is "four hundred one million, six hundred forty-one thousand, one hundred seventeen".