197901 has 12 divisors (see below), whose sum is σ = 312000. Its totient is φ = 119880.

The previous prime is 197893. The next prime is 197909. The reversal of 197901 is 109791.

It is an interprime number because it is at equal distance from previous prime (197893) and next prime (197909).

It is not a de Polignac number, because 197901 - 2³ = 197893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 901 + ... + 1098.

It is an arithmetic number, because the mean of its divisors is an integer number (26000).

2¹⁹⁷⁹⁰¹ is an apocalyptic number.

197901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

197901 is a deficient number, since it is larger than the sum of its proper divisors (114099).

197901 is a wasteful number, since it uses less digits than its factorization.

197901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016 (or 2013 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 27.

The square root of 197901 is about 444.8606523396. The cubic root of 197901 is about 58.2750510852.

It can be divided in two parts, 19790 and 1, that added together give a palindrome (19791).

The spelling of 197901 in words is "one hundred ninety-seven thousand, nine hundred one".