1168144339 has 6 divisors (see below), whose sum is σ = 1229782460. Its totient is φ = 1106521920.

The previous prime is 1168144259. The next prime is 1168144357. The reversal of 1168144339 is 9334418611.

It is a de Polignac number, because none of the positive numbers 2^k-1168144339 is a prime.

It is a super-2 number, since 2×1168144339² = 2729122393475493842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1168144379) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145059 + ... + 152899.

Almost surely, 2^1168144339 is an apocalyptic number.

1168144339 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1168144339 is a deficient number, since it is larger than the sum of its proper divisors (61638121).

1168144339 is an frugal number, since it uses more digits than its factorization.

1168144339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15701 (or 7860 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 1168144339 is about 34178.1266163024. The cubic root of 1168144339 is about 1053.1708649456.

The spelling of 1168144339 in words is "one billion, one hundred sixty-eight million, one hundred forty-four thousand, three hundred thirty-nine".