1168427329 has 8 divisors (see below), whose sum is σ = 1200441128. Its totient is φ = 1136436480.

The previous prime is 1168427321. The next prime is 1168427341. The reversal of 1168427329 is 9237248611.

It can be written as a sum of positive squares in 4 ways, for example, as 154132225 + 1014295104 = 12415^2 + 31848^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1168427329 - 2³ = 1168427321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1168427321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168919 + ... + 175699.

It is an arithmetic number, because the mean of its divisors is an integer number (150055141).

Almost surely, 2^1168427329 is an apocalyptic number.

It is an amenable number.

1168427329 is a deficient number, since it is larger than the sum of its proper divisors (32013799).

1168427329 is an equidigital number, since it uses as much as digits as its factorization.

1168427329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11475.

The product of its digits is 145152, while the sum is 43.

The square root of 1168427329 is about 34182.2662940888. The cubic root of 1168427329 is about 1053.2559037402.

The spelling of 1168427329 in words is "one billion, one hundred sixty-eight million, four hundred twenty-seven thousand, three hundred twenty-nine".