401120197 has 2 divisors, whose sum is σ = 401120198. Its totient is φ = 401120196.

The previous prime is 401120189. The next prime is 401120227. The reversal of 401120197 is 791021104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332661121 + 68459076 = 18239^2 + 8274^2 .

It is a cyclic number.

It is not a de Polignac number, because 401120197 - 2³ = 401120189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401120107) 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, 200560098 + 200560099.

It is an arithmetic number, because the mean of its divisors is an integer number (200560099).

Almost surely, 2^401120197 is an apocalyptic number.

It is an amenable number.

401120197 is a deficient number, since it is larger than the sum of its proper divisors (1).

401120197 is an equidigital number, since it uses as much as digits as its factorization.

401120197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 401120197 is about 20027.9853455109. The cubic root of 401120197 is about 737.4934654980.

The spelling of 401120197 in words is "four hundred one million, one hundred twenty thousand, one hundred ninety-seven".