1139539537 has 2 divisors, whose sum is σ = 1139539538. Its totient is φ = 1139539536.

The previous prime is 1139539501. The next prime is 1139539567. The reversal of 1139539537 is 7359359311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 862949376 + 276590161 = 29376^2 + 16631^2 .

It is a cyclic number.

It is not a de Polignac number, because 1139539537 - 2¹⁵ = 1139506769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1139539567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569769768 + 569769769.

It is an arithmetic number, because the mean of its divisors is an integer number (569769769).

Almost surely, 2^1139539537 is an apocalyptic number.

It is an amenable number.

1139539537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139539537 is an equidigital number, since it uses as much as digits as its factorization.

1139539537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 382725, while the sum is 46.

The square root of 1139539537 is about 33757.0664750360. The cubic root of 1139539537 is about 1044.5032587946.

The spelling of 1139539537 in words is "one billion, one hundred thirty-nine million, five hundred thirty-nine thousand, five hundred thirty-seven".