1140728647 has 2 divisors, whose sum is σ = 1140728648. Its totient is φ = 1140728646.

The previous prime is 1140728627. The next prime is 1140728657. The reversal of 1140728647 is 7468270411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1140728647 - 2¹¹ = 1140726599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140728627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570364323 + 570364324.

It is an arithmetic number, because the mean of its divisors is an integer number (570364324).

Almost surely, 2^1140728647 is an apocalyptic number.

1140728647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140728647 is an equidigital number, since it uses as much as digits as its factorization.

1140728647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 1140728647 is about 33774.6746394395. The cubic root of 1140728647 is about 1044.8664456962.

The spelling of 1140728647 in words is "one billion, one hundred forty million, seven hundred twenty-eight thousand, six hundred forty-seven".