100166197 has 2 divisors, whose sum is σ = 100166198. Its totient is φ = 100166196.

The previous prime is 100166189. The next prime is 100166201. The reversal of 100166197 is 791661001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57668836 + 42497361 = 7594^2 + 6519^2 .

It is a cyclic number.

It is not a de Polignac number, because 100166197 - 2³ = 100166189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100166117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50083098 + 50083099.

It is an arithmetic number, because the mean of its divisors is an integer number (50083099).

Almost surely, 2^100166197 is an apocalyptic number.

It is an amenable number.

100166197 is a deficient number, since it is larger than the sum of its proper divisors (1).

100166197 is an equidigital number, since it uses as much as digits as its factorization.

100166197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 100166197 is about 10008.3064001858. The cubic root of 100166197 is about 464.4158804198.

The spelling of 100166197 in words is "one hundred million, one hundred sixty-six thousand, one hundred ninety-seven".