1168023139 has 2 divisors, whose sum is σ = 1168023140. Its totient is φ = 1168023138.

The previous prime is 1168023121. The next prime is 1168023187. The reversal of 1168023139 is 9313208611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1168023139 - 2⁵ = 1168023107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1168027139) 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 as a sum of consecutive naturals, namely, 584011569 + 584011570.

It is an arithmetic number, because the mean of its divisors is an integer number (584011570).

Almost surely, 2^1168023139 is an apocalyptic number.

1168023139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1168023139 is an equidigital number, since it uses as much as digits as its factorization.

1168023139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1168023139 is about 34176.3535064816. The cubic root of 1168023139 is about 1053.1344400167.

The spelling of 1168023139 in words is "one billion, one hundred sixty-eight million, twenty-three thousand, one hundred thirty-nine".