1150205129 has 2 divisors, whose sum is σ = 1150205130. Its totient is φ = 1150205128.

The previous prime is 1150205039. The next prime is 1150205131. The reversal of 1150205129 is 9215020511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 794958025 + 355247104 = 28195^2 + 18848^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150205129 - 2¹² = 1150201033 is a prime.

Together with 1150205131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1150205098 and 1150205107.

It is not a weakly prime, because it can be changed into another prime (1150225129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575102564 + 575102565.

It is an arithmetic number, because the mean of its divisors is an integer number (575102565).

Almost surely, 2^1150205129 is an apocalyptic number.

It is an amenable number.

1150205129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150205129 is an equidigital number, since it uses as much as digits as its factorization.

1150205129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 1150205129 is about 33914.6742428702. The cubic root of 1150205129 is about 1047.7518426596.

The spelling of 1150205129 in words is "one billion, one hundred fifty million, two hundred five thousand, one hundred twenty-nine".