1139433941 has 2 divisors, whose sum is σ = 1139433942. Its totient is φ = 1139433940.

The previous prime is 1139433917. The next prime is 1139433947. The reversal of 1139433941 is 1493349311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 609053041 + 530380900 = 24679^2 + 23030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1139433941 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1139433895 and 1139433904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1139433947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569716970 + 569716971.

It is an arithmetic number, because the mean of its divisors is an integer number (569716971).

Almost surely, 2^1139433941 is an apocalyptic number.

It is an amenable number.

1139433941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139433941 is an equidigital number, since it uses as much as digits as its factorization.

1139433941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 38.

The square root of 1139433941 is about 33755.5023810934. The cubic root of 1139433941 is about 1044.4709946594.

The spelling of 1139433941 in words is "one billion, one hundred thirty-nine million, four hundred thirty-three thousand, nine hundred forty-one".