100204187 has 2 divisors, whose sum is σ = 100204188. Its totient is φ = 100204186.

The previous prime is 100204163. The next prime is 100204199. The reversal of 100204187 is 781402001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100204187 - 2⁸ = 100203931 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100204387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50102093 + 50102094.

It is an arithmetic number, because the mean of its divisors is an integer number (50102094).

Almost surely, 2^100204187 is an apocalyptic number.

100204187 is a deficient number, since it is larger than the sum of its proper divisors (1).

100204187 is an equidigital number, since it uses as much as digits as its factorization.

100204187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 100204187 is about 10010.2041437725. The cubic root of 100204187 is about 464.4745859505.

Adding to 100204187 its reverse (781402001), we get a palindrome (881606188).

The spelling of 100204187 in words is "one hundred million, two hundred four thousand, one hundred eighty-seven".