103129793 has 4 divisors (see below), whose sum is σ = 111062868. Its totient is φ = 95196720.

The previous prime is 103129783. The next prime is 103129811. The reversal of 103129793 is 397921301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68178049 + 34951744 = 8257^2 + 5912^2 .

It is a cyclic number.

It is not a de Polignac number, because 103129793 - 2¹⁰ = 103128769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103129783) 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 3 ways as a sum of consecutive naturals, for example, 3966518 + ... + 3966543.

It is an arithmetic number, because the mean of its divisors is an integer number (27765717).

Almost surely, 2^103129793 is an apocalyptic number.

103129793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

103129793 is a deficient number, since it is larger than the sum of its proper divisors (7933075).

103129793 is an equidigital number, since it uses as much as digits as its factorization.

103129793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7933074.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 103129793 is about 10155.2839940594. The cubic root of 103129793 is about 468.9516288616.

The spelling of 103129793 in words is "one hundred three million, one hundred twenty-nine thousand, seven hundred ninety-three".