1168438515 has 16 divisors (see below), whose sum is σ = 1929808896. Its totient is φ = 603064800.

The previous prime is 1168438487. The next prime is 1168438549. The reversal of 1168438515 is 5158348611.

It is not a de Polignac number, because 1168438515 - 2⁵ = 1168438483 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1255921 + ... + 1256850.

It is an arithmetic number, because the mean of its divisors is an integer number (120613056).

Almost surely, 2^1168438515 is an apocalyptic number.

1168438515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1168438515 is a deficient number, since it is larger than the sum of its proper divisors (761370381).

1168438515 is a wasteful number, since it uses less digits than its factorization.

1168438515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512810.

The product of its digits is 115200, while the sum is 42.

The square root of 1168438515 is about 34182.4299165522. The cubic root of 1168438515 is about 1053.2592648629.

The spelling of 1168438515 in words is "one billion, one hundred sixty-eight million, four hundred thirty-eight thousand, five hundred fifteen".