101680197 has 4 divisors (see below), whose sum is σ = 135573600. Its totient is φ = 67786796.

The previous prime is 101680193. The next prime is 101680199. The reversal of 101680197 is 791086101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101680197 - 2² = 101680193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101680193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16946697 + ... + 16946702.

It is an arithmetic number, because the mean of its divisors is an integer number (33893400).

Almost surely, 2^101680197 is an apocalyptic number.

It is an amenable number.

101680197 is a deficient number, since it is larger than the sum of its proper divisors (33893403).

101680197 is an equidigital number, since it uses as much as digits as its factorization.

101680197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33893402.

The product of its (nonzero) digits is 3024, while the sum is 33.

The square root of 101680197 is about 10083.6599010478. The cubic root of 101680197 is about 466.7440528695.

The spelling of 101680197 in words is "one hundred one million, six hundred eighty thousand, one hundred ninety-seven".