1139730089 has 2 divisors, whose sum is σ = 1139730090. Its totient is φ = 1139730088.

The previous prime is 1139730079. The next prime is 1139730103. The reversal of 1139730089 is 9800379311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 776179600 + 363550489 = 27860^2 + 19067^2 .

It is an emirp because it is prime and its reverse (9800379311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1139730089 - 2¹⁶ = 1139664553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1139730019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569865044 + 569865045.

It is an arithmetic number, because the mean of its divisors is an integer number (569865045).

Almost surely, 2^1139730089 is an apocalyptic number.

It is an amenable number.

1139730089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139730089 is an equidigital number, since it uses as much as digits as its factorization.

1139730089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 1139730089 is about 33759.8887587030. Note that the first 3 decimals coincide. The cubic root of 1139730089 is about 1044.5614756110.

The spelling of 1139730089 in words is "one billion, one hundred thirty-nine million, seven hundred thirty thousand, eighty-nine".