1139159687 has 12 divisors (see below), whose sum is σ = 1224975960. Its totient is φ = 1058823792.

The previous prime is 1139159657. The next prime is 1139159699. The reversal of 1139159687 is 7869519311.

It is a de Polignac number, because none of the positive numbers 2^k-1139159687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139159657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10637 + ... + 48902.

It is an arithmetic number, because the mean of its divisors is an integer number (102081330).

Almost surely, 2^1139159687 is an apocalyptic number.

1139159687 is a deficient number, since it is larger than the sum of its proper divisors (85816273).

1139159687 is an equidigital number, since it uses as much as digits as its factorization.

1139159687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59630 (or 59611 counting only the distinct ones).

The product of its digits is 408240, while the sum is 50.

The square root of 1139159687 is about 33751.4397766969. The cubic root of 1139159687 is about 1044.3871889137.

The spelling of 1139159687 in words is "one billion, one hundred thirty-nine million, one hundred fifty-nine thousand, six hundred eighty-seven".