101908 has 12 divisors (see below), whose sum is σ = 181300. Its totient is φ = 50112.

The previous prime is 101891. The next prime is 101917. The reversal of 101908 is 809101.

It can be written as a sum of positive squares in 2 ways, for example, as 66564 + 35344 = 258^2 + 188^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118 + ... + 466.

2¹⁰¹⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

101908 is a deficient number, since it is larger than the sum of its proper divisors (79392).

101908 is a wasteful number, since it uses less digits than its factorization.

101908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 101908 is about 319.2303243741. The cubic root of 101908 is about 46.7092355337.

The spelling of 101908 in words is "one hundred one thousand, nine hundred eight".