100189807 has 2 divisors, whose sum is σ = 100189808. Its totient is φ = 100189806.

The previous prime is 100189783. The next prime is 100189841. The reversal of 100189807 is 708981001.

It is an a-pointer prime, because the next prime (100189841) can be obtained adding 100189807 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100189807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100189207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50094903 + 50094904.

It is an arithmetic number, because the mean of its divisors is an integer number (50094904).

Almost surely, 2^100189807 is an apocalyptic number.

100189807 is a deficient number, since it is larger than the sum of its proper divisors (1).

100189807 is an equidigital number, since it uses as much as digits as its factorization.

100189807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 100189807 is about 10009.4858509316. The cubic root of 100189807 is about 464.4523664396.

The spelling of 100189807 in words is "one hundred million, one hundred eighty-nine thousand, eight hundred seven".