240396197 has 2 divisors, whose sum is σ = 240396198. Its totient is φ = 240396196.

The previous prime is 240396097. The next prime is 240396199. The reversal of 240396197 is 791693042.

240396197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238362721 + 2033476 = 15439^2 + 1426^2 .

It is a cyclic number.

It is not a de Polignac number, because 240396197 - 2⁸ = 240395941 is a prime.

Together with 240396199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240396199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120198098 + 120198099.

It is an arithmetic number, because the mean of its divisors is an integer number (120198099).

Almost surely, 2^240396197 is an apocalyptic number.

It is an amenable number.

240396197 is a deficient number, since it is larger than the sum of its proper divisors (1).

240396197 is an equidigital number, since it uses as much as digits as its factorization.

240396197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 240396197 is about 15504.7153150259. The cubic root of 240396197 is about 621.7882787988.

The spelling of 240396197 in words is "two hundred forty million, three hundred ninety-six thousand, one hundred ninety-seven".