111569041 has 2 divisors, whose sum is σ = 111569042. Its totient is φ = 111569040.

The previous prime is 111568997. The next prime is 111569053. The reversal of 111569041 is 140965111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109307025 + 2262016 = 10455^2 + 1504^2 .

It is a cyclic number.

It is not a de Polignac number, because 111569041 - 2⁹ = 111568529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111539041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55784520 + 55784521.

It is an arithmetic number, because the mean of its divisors is an integer number (55784521).

Almost surely, 2^111569041 is an apocalyptic number.

It is an amenable number.

111569041 is a deficient number, since it is larger than the sum of its proper divisors (1).

111569041 is an equidigital number, since it uses as much as digits as its factorization.

111569041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 111569041 is about 10562.6247211571. The cubic root of 111569041 is about 481.4094007081.

The spelling of 111569041 in words is "one hundred eleven million, five hundred sixty-nine thousand, forty-one".