140197 has 2 divisors, whose sum is σ = 140198. Its totient is φ = 140196.

The previous prime is 140191. The next prime is 140207. The reversal of 140197 is 791041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133956 + 6241 = 366^2 + 79^2 .

It is a cyclic number.

It is not a de Polignac number, because 140197 - 2⁷ = 140069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70098 + 70099.

It is an arithmetic number, because the mean of its divisors is an integer number (70099).

2¹⁴⁰¹⁹⁷ is an apocalyptic number.

It is an amenable number.

140197 is a deficient number, since it is larger than the sum of its proper divisors (1).

140197 is an equidigital number, since it uses as much as digits as its factorization.

140197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 140197 is about 374.4288984574. The cubic root of 140197 is about 51.9492848736.

The spelling of 140197 in words is "one hundred forty thousand, one hundred ninety-seven".