111745241 has 2 divisors, whose sum is σ = 111745242. Its totient is φ = 111745240.

The previous prime is 111745189. The next prime is 111745243. The reversal of 111745241 is 142547111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64080025 + 47665216 = 8005^2 + 6904^2 .

It is a cyclic number.

It is not a de Polignac number, because 111745241 - 2⁶ = 111745177 is a prime.

It is a super-2 number, since 2×111745241² = 24973997772296162, which contains 22 as substring.

Together with 111745243, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111745241.

It is not a weakly prime, because it can be changed into another prime (111745243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55872620 + 55872621.

It is an arithmetic number, because the mean of its divisors is an integer number (55872621).

Almost surely, 2^111745241 is an apocalyptic number.

It is an amenable number.

111745241 is a deficient number, since it is larger than the sum of its proper divisors (1).

111745241 is an equidigital number, since it uses as much as digits as its factorization.

111745241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 26.

The square root of 111745241 is about 10570.9621605604. The cubic root of 111745241 is about 481.6626959492.

The spelling of 111745241 in words is "one hundred eleven million, seven hundred forty-five thousand, two hundred forty-one".