110999959 has 4 divisors (see below), whose sum is σ = 126857104. Its totient is φ = 95142816.

The previous prime is 110999929. The next prime is 110999969. The reversal of 110999959 is 959999011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 959999011 = 3761 ⋅255251.

It is a cyclic number.

It is not a de Polignac number, because 110999959 - 2¹¹ = 110997911 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 (110999929) 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 3 ways as a sum of consecutive naturals, for example, 7928562 + ... + 7928575.

It is an arithmetic number, because the mean of its divisors is an integer number (31714276).

Almost surely, 2^110999959 is an apocalyptic number.

110999959 is a deficient number, since it is larger than the sum of its proper divisors (15857145).

110999959 is an equidigital number, since it uses as much as digits as its factorization.

110999959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15857144.

The product of its (nonzero) digits is 295245, while the sum is 52.

The square root of 110999959 is about 10535.6518070787. The cubic root of 110999959 is about 480.5894941988.

The spelling of 110999959 in words is "one hundred ten million, nine hundred ninety-nine thousand, nine hundred fifty-nine".