111404047 has 2 divisors, whose sum is σ = 111404048. Its totient is φ = 111404046.

The previous prime is 111404021. The next prime is 111404071. The reversal of 111404047 is 740404111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111404047 - 2¹¹ = 111401999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111404347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55702023 + 55702024.

It is an arithmetic number, because the mean of its divisors is an integer number (55702024).

Almost surely, 2^111404047 is an apocalyptic number.

111404047 is a deficient number, since it is larger than the sum of its proper divisors (1).

111404047 is an equidigital number, since it uses as much as digits as its factorization.

111404047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 111404047 is about 10554.8115568209. The cubic root of 111404047 is about 481.1719726874.

Adding to 111404047 its reverse (740404111), we get a palindrome (851808158).

The spelling of 111404047 in words is "one hundred eleven million, four hundred four thousand, forty-seven".