112640197 has 2 divisors, whose sum is σ = 112640198. Its totient is φ = 112640196.

The previous prime is 112640191. The next prime is 112640207. The reversal of 112640197 is 791046211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80389156 + 32251041 = 8966^2 + 5679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112640197 is a prime.

It is equal to p_6445624 and since 112640197 and 6445624 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112640191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56320098 + 56320099.

It is an arithmetic number, because the mean of its divisors is an integer number (56320099).

Almost surely, 2^112640197 is an apocalyptic number.

It is an amenable number.

112640197 is a deficient number, since it is larger than the sum of its proper divisors (1).

112640197 is an equidigital number, since it uses as much as digits as its factorization.

112640197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 112640197 is about 10613.2086100293. The cubic root of 112640197 is about 482.9451404900.

The spelling of 112640197 in words is "one hundred twelve million, six hundred forty thousand, one hundred ninety-seven".