1139241641 has 4 divisors (see below), whose sum is σ = 1139553492. Its totient is φ = 1138929792.

The previous prime is 1139241629. The next prime is 1139241667. The reversal of 1139241641 is 1461429311.

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 30085225 + 1109156416 = 5485^2 + 33304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1139241641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1139241598 and 1139241607.

It is not an unprimeable number, because it can be changed into a prime (1139241671) 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 in 3 ways as a sum of consecutive naturals, for example, 150380 + ... + 157773.

It is an arithmetic number, because the mean of its divisors is an integer number (284888373).

Almost surely, 2^1139241641 is an apocalyptic number.

It is an amenable number.

1139241641 is a deficient number, since it is larger than the sum of its proper divisors (311851).

1139241641 is an equidigital number, since it uses as much as digits as its factorization.

1139241641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311850.

The product of its digits is 5184, while the sum is 32.

The square root of 1139241641 is about 33752.6538364023. The cubic root of 1139241641 is about 1044.4122335895.

The spelling of 1139241641 in words is "one billion, one hundred thirty-nine million, two hundred forty-one thousand, six hundred forty-one".