111404459 has 2 divisors, whose sum is σ = 111404460. Its totient is φ = 111404458.

The previous prime is 111404437. The next prime is 111404471. The reversal of 111404459 is 954404111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111404459 - 2²⁴ = 94627243 is a prime.

It is not a weakly prime, because it can be changed into another prime (111404159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55702229 + 55702230.

It is an arithmetic number, because the mean of its divisors is an integer number (55702230).

Almost surely, 2^111404459 is an apocalyptic number.

111404459 is a deficient number, since it is larger than the sum of its proper divisors (1).

111404459 is an equidigital number, since it uses as much as digits as its factorization.

111404459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 111404459 is about 10554.8310739680. The cubic root of 111404459 is about 481.1725658514.

The spelling of 111404459 in words is "one hundred eleven million, four hundred four thousand, four hundred fifty-nine".