103129808 has 20 divisors (see below), whose sum is σ = 206260608. Its totient is φ = 49901280.

The previous prime is 103129783. The next prime is 103129811. The reversal of 103129808 is 808921301.

103129808 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 103466 + ... + 104457.

Almost surely, 2^103129808 is an apocalyptic number.

It is an amenable number.

103129808 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103129808 is a wasteful number, since it uses less digits than its factorization.

103129808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207962 (or 207956 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 103129808 is about 10155.2847325912. The cubic root of 103129808 is about 468.9516515976.

The spelling of 103129808 in words is "one hundred three million, one hundred twenty-nine thousand, eight hundred eight".