111408047 has 2 divisors, whose sum is σ = 111408048. Its totient is φ = 111408046.

The previous prime is 111408043. The next prime is 111408049. The reversal of 111408047 is 740804111.

It is a strong prime.

It is an emirp because it is prime and its reverse (740804111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111408047 - 2² = 111408043 is a prime.

Together with 111408049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111408041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55704023 + 55704024.

It is an arithmetic number, because the mean of its divisors is an integer number (55704024).

Almost surely, 2^111408047 is an apocalyptic number.

111408047 is a deficient number, since it is larger than the sum of its proper divisors (1).

111408047 is an equidigital number, since it uses as much as digits as its factorization.

111408047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 111408047 is about 10555.0010421601. The cubic root of 111408047 is about 481.1777314993.

The spelling of 111408047 in words is "one hundred eleven million, four hundred eight thousand, forty-seven".