1140438547 has 2 divisors, whose sum is σ = 1140438548. Its totient is φ = 1140438546.

The previous prime is 1140438527. The next prime is 1140438569. The reversal of 1140438547 is 7458340411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1140438547 - 2¹¹ = 1140436499 is a prime.

It is not a weakly prime, because it can be changed into another prime (1140438517) 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, 570219273 + 570219274.

It is an arithmetic number, because the mean of its divisors is an integer number (570219274).

Almost surely, 2^1140438547 is an apocalyptic number.

1140438547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140438547 is an equidigital number, since it uses as much as digits as its factorization.

1140438547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 1140438547 is about 33770.3797283951. The cubic root of 1140438547 is about 1044.7778644619. Note that the first 3 decimals are identical.

Adding to 1140438547 its reverse (7458340411), we get a palindrome (8598778958).

The spelling of 1140438547 in words is "one billion, one hundred forty million, four hundred thirty-eight thousand, five hundred forty-seven".