1195079789 has 2 divisors, whose sum is σ = 1195079790. Its totient is φ = 1195079788.

The previous prime is 1195079741. The next prime is 1195079797. The reversal of 1195079789 is 9879705911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1189077289 + 6002500 = 34483^2 + 2450^2 .

It is a cyclic number.

It is not a de Polignac number, because 1195079789 - 2²⁰ = 1194031213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1195079089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 597539894 + 597539895.

It is an arithmetic number, because the mean of its divisors is an integer number (597539895).

Almost surely, 2^1195079789 is an apocalyptic number.

It is an amenable number.

1195079789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1195079789 is an equidigital number, since it uses as much as digits as its factorization.

1195079789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1428840, while the sum is 56.

The square root of 1195079789 is about 34569.9260774448. The cubic root of 1195079789 is about 1061.2042173402.

The spelling of 1195079789 in words is "one billion, one hundred ninety-five million, seventy-nine thousand, seven hundred eighty-nine".