1141767761 has 2 divisors, whose sum is σ = 1141767762. Its totient is φ = 1141767760.

The previous prime is 1141767743. The next prime is 1141767763. The reversal of 1141767761 is 1677671411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 984014161 + 157753600 = 31369^2 + 12560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1141767761 is a prime.

Together with 1141767763, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1141767763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570883880 + 570883881.

It is an arithmetic number, because the mean of its divisors is an integer number (570883881).

Almost surely, 2^1141767761 is an apocalyptic number.

It is an amenable number.

1141767761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141767761 is an equidigital number, since it uses as much as digits as its factorization.

1141767761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49392, while the sum is 41.

The square root of 1141767761 is about 33790.0541727888. The cubic root of 1141767761 is about 1045.1836131044.

The spelling of 1141767761 in words is "one billion, one hundred forty-one million, seven hundred sixty-seven thousand, seven hundred sixty-one".