401108173 has 2 divisors, whose sum is σ = 401108174. Its totient is φ = 401108172.

The previous prime is 401108159. The next prime is 401108219. The reversal of 401108173 is 371801104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310534884 + 90573289 = 17622^2 + 9517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401108173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401108273) 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, 200554086 + 200554087.

It is an arithmetic number, because the mean of its divisors is an integer number (200554087).

Almost surely, 2^401108173 is an apocalyptic number.

It is an amenable number.

401108173 is a deficient number, since it is larger than the sum of its proper divisors (1).

401108173 is an equidigital number, since it uses as much as digits as its factorization.

401108173 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 401108173 is about 20027.6851632933. The cubic root of 401108173 is about 737.4860963768.

Adding to 401108173 its reverse (371801104), we get a palindrome (772909277).

The spelling of 401108173 in words is "four hundred one million, one hundred eight thousand, one hundred seventy-three".