1168854521 has 4 divisors (see below), whose sum is σ = 1230373200. Its totient is φ = 1107335844.

The previous prime is 1168854497. The next prime is 1168854523. The reversal of 1168854521 is 1254588611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1254588611 = 251 ⋅4998361.

It is a cyclic number.

It is not a de Polignac number, because 1168854521 - 2¹⁴ = 1168838137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1168854523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30759311 + ... + 30759348.

It is an arithmetic number, because the mean of its divisors is an integer number (307593300).

Almost surely, 2^1168854521 is an apocalyptic number.

It is an amenable number.

1168854521 is a deficient number, since it is larger than the sum of its proper divisors (61518679).

1168854521 is an equidigital number, since it uses as much as digits as its factorization.

1168854521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61518678.

The product of its digits is 76800, while the sum is 41.

The square root of 1168854521 is about 34188.5144602687. The cubic root of 1168854521 is about 1053.3842493837.

The spelling of 1168854521 in words is "one billion, one hundred sixty-eight million, eight hundred fifty-four thousand, five hundred twenty-one".