1141399109 has 2 divisors, whose sum is σ = 1141399110. Its totient is φ = 1141399108.

The previous prime is 1141399099. The next prime is 1141399211. The reversal of 1141399109 is 9019931411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 994456225 + 146942884 = 31535^2 + 12122^2 .

It is an emirp because it is prime and its reverse (9019931411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1141399109 - 2⁴ = 1141399093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1141395109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570699554 + 570699555.

It is an arithmetic number, because the mean of its divisors is an integer number (570699555).

Almost surely, 2^1141399109 is an apocalyptic number.

It is an amenable number.

1141399109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141399109 is an equidigital number, since it uses as much as digits as its factorization.

1141399109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 38.

The square root of 1141399109 is about 33784.5986952635. The cubic root of 1141399109 is about 1045.0711119697.

The spelling of 1141399109 in words is "one billion, one hundred forty-one million, three hundred ninety-nine thousand, one hundred nine".