116521889 has 8 divisors (see below), whose sum is σ = 133805280. Its totient is φ = 100353600.

The previous prime is 116521837. The next prime is 116521891. The reversal of 116521889 is 988125611.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116521889 is a prime.

It is a super-2 number, since 2×116521889² = 27154701232256642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116521589) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 278552 + ... + 278969.

It is an arithmetic number, because the mean of its divisors is an integer number (16725660).

Almost surely, 2^116521889 is an apocalyptic number.

116521889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

116521889 is a deficient number, since it is larger than the sum of its proper divisors (17283391).

116521889 is a wasteful number, since it uses less digits than its factorization.

116521889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557551.

The product of its digits is 34560, while the sum is 41.

The square root of 116521889 is about 10794.5305131812. The cubic root of 116521889 is about 488.4301962673.

The spelling of 116521889 in words is "one hundred sixteen million, five hundred twenty-one thousand, eight hundred eighty-nine".