116121599 has 4 divisors (see below), whose sum is σ = 126678120. Its totient is φ = 105565080.

The previous prime is 116121589. The next prime is 116121659. The reversal of 116121599 is 995121611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 116121599 - 2⁴ = 116121583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116121589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5278244 + ... + 5278265.

It is an arithmetic number, because the mean of its divisors is an integer number (31669530).

Almost surely, 2^116121599 is an apocalyptic number.

116121599 is a deficient number, since it is larger than the sum of its proper divisors (10556521).

116121599 is a wasteful number, since it uses less digits than its factorization.

116121599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556520.

The product of its digits is 4860, while the sum is 35.

The square root of 116121599 is about 10775.9732275094. The cubic root of 116121599 is about 487.8702498707.

The spelling of 116121599 in words is "one hundred sixteen million, one hundred twenty-one thousand, five hundred ninety-nine".