1168598539 has 2 divisors, whose sum is σ = 1168598540. Its totient is φ = 1168598538.

The previous prime is 1168598489. The next prime is 1168598549. The reversal of 1168598539 is 9358958611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1168598539 - 2⁹ = 1168598027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1168598539.

It is not a weakly prime, because it can be changed into another prime (1168598549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 584299269 + 584299270.

It is an arithmetic number, because the mean of its divisors is an integer number (584299270).

Almost surely, 2^1168598539 is an apocalyptic number.

1168598539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1168598539 is an equidigital number, since it uses as much as digits as its factorization.

1168598539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 55.

The square root of 1168598539 is about 34184.7705711184. The cubic root of 1168598539 is about 1053.3073458600.

It can be divided in two parts, 11685 and 98539, that added together give a square (110224 = 332²).

The spelling of 1168598539 in words is "one billion, one hundred sixty-eight million, five hundred ninety-eight thousand, five hundred thirty-nine".