1141277209 has 2 divisors, whose sum is σ = 1141277210. Its totient is φ = 1141277208.

The previous prime is 1141277131. The next prime is 1141277239. The reversal of 1141277209 is 9027721411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1013021584 + 128255625 = 31828^2 + 11325^2 .

It is an emirp because it is prime and its reverse (9027721411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1141277209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1141277239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570638604 + 570638605.

It is an arithmetic number, because the mean of its divisors is an integer number (570638605).

Almost surely, 2^1141277209 is an apocalyptic number.

It is an amenable number.

1141277209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141277209 is an equidigital number, since it uses as much as digits as its factorization.

1141277209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 1141277209 is about 33782.7945706095. The cubic root of 1141277209 is about 1045.0339065485.

The spelling of 1141277209 in words is "one billion, one hundred forty-one million, two hundred seventy-seven thousand, two hundred nine".