1139071729 has 2 divisors, whose sum is σ = 1139071730. Its totient is φ = 1139071728.

The previous prime is 1139071721. The next prime is 1139071741. The reversal of 1139071729 is 9271709311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1077480625 + 61591104 = 32825^2 + 7848^2 .

It is a cyclic number.

It is not a de Polignac number, because 1139071729 - 2³ = 1139071721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1139071691 and 1139071700.

It is not a weakly prime, because it can be changed into another prime (1139071721) 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, 569535864 + 569535865.

It is an arithmetic number, because the mean of its divisors is an integer number (569535865).

Almost surely, 2^1139071729 is an apocalyptic number.

It is an amenable number.

1139071729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139071729 is an equidigital number, since it uses as much as digits as its factorization.

1139071729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 40.

The square root of 1139071729 is about 33750.1367256490. The cubic root of 1139071729 is about 1044.3603081132.

The spelling of 1139071729 in words is "one billion, one hundred thirty-nine million, seventy-one thousand, seven hundred twenty-nine".