100171907 has 6 divisors (see below), whose sum is σ = 110106444. Its totient is φ = 91065260.

The previous prime is 100171873. The next prime is 100171909. The reversal of 100171907 is 709171001.

It is not a de Polignac number, because 100171907 - 2¹⁰ = 100170883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100171909) 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 5 ways as a sum of consecutive naturals, for example, 413813 + ... + 414054.

It is an arithmetic number, because the mean of its divisors is an integer number (18351074).

Almost surely, 2^100171907 is an apocalyptic number.

100171907 is a deficient number, since it is larger than the sum of its proper divisors (9934537).

100171907 is an equidigital number, since it uses as much as digits as its factorization.

100171907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827889 (or 827878 counting only the distinct ones).

The product of its (nonzero) digits is 441, while the sum is 26.

The square root of 100171907 is about 10008.5916591696. The cubic root of 100171907 is about 464.4247049680.

The spelling of 100171907 in words is "one hundred million, one hundred seventy-one thousand, nine hundred seven".