111404005 has 4 divisors (see below), whose sum is σ = 133684812. Its totient is φ = 89123200.

The previous prime is 111403979. The next prime is 111404021. The reversal of 111404005 is 500404111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500404111 = 53 ⋅9441587.

It can be written as a sum of positive squares in 2 ways, for example, as 88190881 + 23213124 = 9391^2 + 4818^2 .

It is not a de Polignac number, because 111404005 - 2¹³ = 111395813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111404005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11140396 + ... + 11140405.

It is an arithmetic number, because the mean of its divisors is an integer number (33421203).

Almost surely, 2^111404005 is an apocalyptic number.

It is an amenable number.

111404005 is a deficient number, since it is larger than the sum of its proper divisors (22280807).

111404005 is an equidigital number, since it uses as much as digits as its factorization.

111404005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22280806.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 111404005 is about 10554.8095672068. The cubic root of 111404005 is about 481.1719122191.

Adding to 111404005 its reverse (500404111), we get a palindrome (611808116).

The spelling of 111404005 in words is "one hundred eleven million, four hundred four thousand, five".