103159729 has 4 divisors (see below), whose sum is σ = 103196020. Its totient is φ = 103123440.

The previous prime is 103159711. The next prime is 103159769. The reversal of 103159729 is 927951301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 927951301 = 79 ⋅11746219.

It can be written as a sum of positive squares in 2 ways, for example, as 30824704 + 72335025 = 5552^2 + 8505^2 .

It is a cyclic number.

It is not a de Polignac number, because 103159729 - 2⁵ = 103159697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103159769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13482 + ... + 19699.

It is an arithmetic number, because the mean of its divisors is an integer number (25799005).

Almost surely, 2^103159729 is an apocalyptic number.

It is an amenable number.

103159729 is a deficient number, since it is larger than the sum of its proper divisors (36291).

103159729 is an equidigital number, since it uses as much as digits as its factorization.

103159729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36290.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 103159729 is about 10156.7577996130. The cubic root of 103159729 is about 468.9969994489.

The spelling of 103159729 in words is "one hundred three million, one hundred fifty-nine thousand, seven hundred twenty-nine".