1168391153 has 2 divisors, whose sum is σ = 1168391154. Its totient is φ = 1168391152.

The previous prime is 1168391071. The next prime is 1168391167. The reversal of 1168391153 is 3511938611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 730242529 + 438148624 = 27023^2 + 20932^2 .

It is an emirp because it is prime and its reverse (3511938611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1168391153 - 2¹² = 1168387057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1168391183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 584195576 + 584195577.

It is an arithmetic number, because the mean of its divisors is an integer number (584195577).

Almost surely, 2^1168391153 is an apocalyptic number.

It is an amenable number.

1168391153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1168391153 is an equidigital number, since it uses as much as digits as its factorization.

1168391153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 38.

The square root of 1168391153 is about 34181.7371267172. The cubic root of 1168391153 is about 1053.2450335794.

The spelling of 1168391153 in words is "one billion, one hundred sixty-eight million, three hundred ninety-one thousand, one hundred fifty-three".