111144434 has 4 divisors (see below), whose sum is σ = 166716654. Its totient is φ = 55572216.

The previous prime is 111144413. The next prime is 111144457. The reversal of 111144434 is 434441111.

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

It can be written as a sum of positive squares in only one way, i.e., 96727225 + 14417209 = 9835^2 + 3797^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 27786107 + ... + 27786110.

Almost surely, 2^111144434 is an apocalyptic number.

111144434 is a deficient number, since it is larger than the sum of its proper divisors (55572220).

111144434 is an equidigital number, since it uses as much as digits as its factorization.

111144434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55572219.

The product of its digits is 768, while the sum is 23.

The square root of 111144434 is about 10542.5060588078. The cubic root of 111144434 is about 480.7979118876.

Adding to 111144434 its reverse (434441111), we get a palindrome (545585545).

The spelling of 111144434 in words is "one hundred eleven million, one hundred forty-four thousand, four hundred thirty-four".