103009729 has 2 divisors, whose sum is σ = 103009730. Its totient is φ = 103009728.

The previous prime is 103009679. The next prime is 103009733. The reversal of 103009729 is 927900301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102111025 + 898704 = 10105^2 + 948^2 .

It is a cyclic number.

It is not a de Polignac number, because 103009729 - 2¹³ = 103001537 is a prime.

It is a super-2 number, since 2×103009729² = 21222008537306882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103009729.

It is not a weakly prime, because it can be changed into another prime (103001729) 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 as a sum of consecutive naturals, namely, 51504864 + 51504865.

It is an arithmetic number, because the mean of its divisors is an integer number (51504865).

Almost surely, 2^103009729 is an apocalyptic number.

It is an amenable number.

103009729 is a deficient number, since it is larger than the sum of its proper divisors (1).

103009729 is an equidigital number, since it uses as much as digits as its factorization.

103009729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 103009729 is about 10149.3708672016. The cubic root of 103009729 is about 468.7695732508.

The spelling of 103009729 in words is "one hundred three million, nine thousand, seven hundred twenty-nine".