116111521 has 8 divisors (see below), whose sum is σ = 121268160. Its totient is φ = 110963952.

The previous prime is 116111503. The next prime is 116111531. The reversal of 116111521 is 125111611.

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-116111521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116111531) 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, 45990 + ... + 48448.

It is an arithmetic number, because the mean of its divisors is an integer number (15158520).

Almost surely, 2^116111521 is an apocalyptic number.

It is an amenable number.

116111521 is a deficient number, since it is larger than the sum of its proper divisors (5156639).

116111521 is a wasteful number, since it uses less digits than its factorization.

116111521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535.

The product of its digits is 60, while the sum is 19.

The square root of 116111521 is about 10775.5056029868. The cubic root of 116111521 is about 487.8561356471.

The spelling of 116111521 in words is "one hundred sixteen million, one hundred eleven thousand, five hundred twenty-one".