111800047 has 8 divisors (see below), whose sum is σ = 117781760. Its totient is φ = 105828120.

The previous prime is 111800021. The next prime is 111800093. The reversal of 111800047 is 740008111.

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-111800047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111800747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40522 + ... + 43192.

It is an arithmetic number, because the mean of its divisors is an integer number (14722720).

Almost surely, 2^111800047 is an apocalyptic number.

111800047 is a deficient number, since it is larger than the sum of its proper divisors (5981713).

111800047 is a wasteful number, since it uses less digits than its factorization.

111800047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 111800047 is about 10573.5541328354. The cubic root of 111800047 is about 481.7414276876.

Adding to 111800047 its reverse (740008111), we get a palindrome (851808158).

The spelling of 111800047 in words is "one hundred eleven million, eight hundred thousand, forty-seven".