1139555317 has 4 divisors (see below), whose sum is σ = 1143610956. Its totient is φ = 1135499680.

The previous prime is 1139555299. The next prime is 1139555327. The reversal of 1139555317 is 7135559311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1001469316 + 138086001 = 31646^2 + 11751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1139555317 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1139555317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139555327) 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 in 3 ways as a sum of consecutive naturals, for example, 2027398 + ... + 2027959.

It is an arithmetic number, because the mean of its divisors is an integer number (285902739).

Almost surely, 2^1139555317 is an apocalyptic number.

It is an amenable number.

1139555317 is a deficient number, since it is larger than the sum of its proper divisors (4055639).

1139555317 is an equidigital number, since it uses as much as digits as its factorization.

1139555317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055638.

The product of its digits is 70875, while the sum is 40.

The square root of 1139555317 is about 33757.3002030672. The cubic root of 1139555317 is about 1044.5080800945.

The spelling of 1139555317 in words is "one billion, one hundred thirty-nine million, five hundred fifty-five thousand, three hundred seventeen".