103405129 has 2 divisors, whose sum is σ = 103405130. Its totient is φ = 103405128.

The previous prime is 103405109. The next prime is 103405151. The reversal of 103405129 is 921504301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90250000 + 13155129 = 9500^2 + 3627^2 .

It is an emirp because it is prime and its reverse (921504301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103405129 - 2¹¹ = 103403081 is a prime.

It is not a weakly prime, because it can be changed into another prime (103405109) 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, 51702564 + 51702565.

It is an arithmetic number, because the mean of its divisors is an integer number (51702565).

Almost surely, 2^103405129 is an apocalyptic number.

It is an amenable number.

103405129 is a deficient number, since it is larger than the sum of its proper divisors (1).

103405129 is an equidigital number, since it uses as much as digits as its factorization.

103405129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 103405129 is about 10168.8312504437. The cubic root of 103405129 is about 469.3685938158.

The spelling of 103405129 in words is "one hundred three million, four hundred five thousand, one hundred twenty-nine".