100208071 has 4 divisors (see below), whose sum is σ = 105482200. Its totient is φ = 94933944.

The previous prime is 100208039. The next prime is 100208093. The reversal of 100208071 is 170802001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170802001 = 19 ⋅8989579.

It is a cyclic number.

It is not a de Polignac number, because 100208071 - 2⁵ = 100208039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 5274109 = 100208071 / (1 + 0 + 0 + 2 + 0 + 8 + 0 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100208671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2637036 + ... + 2637073.

It is an arithmetic number, because the mean of its divisors is an integer number (26370550).

Almost surely, 2^100208071 is an apocalyptic number.

100208071 is a deficient number, since it is larger than the sum of its proper divisors (5274129).

100208071 is an equidigital number, since it uses as much as digits as its factorization.

100208071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274128.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 100208071 is about 10010.3981439301. The cubic root of 100208071 is about 464.4805870171.

The spelling of 100208071 in words is "one hundred million, two hundred eight thousand, seventy-one".