111843813 has 8 divisors (see below), whose sum is σ = 150662848. Its totient is φ = 73793664.

The previous prime is 111843803. The next prime is 111843827. The reversal of 111843813 is 318348111.

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

It is not a de Polignac number, because 111843813 - 2²¹ = 109746661 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 (111843803) 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, 191881 + ... + 192462.

It is an arithmetic number, because the mean of its divisors is an integer number (18832856).

Almost surely, 2^111843813 is an apocalyptic number.

It is an amenable number.

111843813 is a deficient number, since it is larger than the sum of its proper divisors (38819035).

111843813 is an equidigital number, since it uses as much as digits as its factorization.

111843813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384443.

The product of its digits is 2304, while the sum is 30.

The square root of 111843813 is about 10575.6235277169. The cubic root of 111843813 is about 481.8042814021.

The spelling of 111843813 in words is "one hundred eleven million, eight hundred forty-three thousand, eight hundred thirteen".