100980197 has 2 divisors, whose sum is σ = 100980198. Its totient is φ = 100980196.

The previous prime is 100980181. The next prime is 100980199. The reversal of 100980197 is 791089001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100922116 + 58081 = 10046^2 + 241^2 .

It is a cyclic number.

It is not a de Polignac number, because 100980197 - 2⁴ = 100980181 is a prime.

Together with 100980199, 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 (100980199) 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, 50490098 + 50490099.

It is an arithmetic number, because the mean of its divisors is an integer number (50490099).

Almost surely, 2^100980197 is an apocalyptic number.

It is an amenable number.

100980197 is a deficient number, since it is larger than the sum of its proper divisors (1).

100980197 is an equidigital number, since it uses as much as digits as its factorization.

100980197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 100980197 is about 10048.8903367486. The cubic root of 100980197 is about 465.6705122367.

The spelling of 100980197 in words is "one hundred million, nine hundred eighty thousand, one hundred ninety-seven".