111005249 has 2 divisors, whose sum is σ = 111005250. Its totient is φ = 111005248.

The previous prime is 111005227. The next prime is 111005287. The reversal of 111005249 is 942500111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66716224 + 44289025 = 8168^2 + 6655^2 .

It is a cyclic number.

It is not a de Polignac number, because 111005249 - 2¹² = 111001153 is a prime.

It is not a weakly prime, because it can be changed into another prime (111005749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55502624 + 55502625.

It is an arithmetic number, because the mean of its divisors is an integer number (55502625).

Almost surely, 2^111005249 is an apocalyptic number.

It is an amenable number.

111005249 is a deficient number, since it is larger than the sum of its proper divisors (1).

111005249 is an equidigital number, since it uses as much as digits as its factorization.

111005249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 111005249 is about 10535.9028564238. The cubic root of 111005249 is about 480.5971286702.

The spelling of 111005249 in words is "one hundred eleven million, five thousand, two hundred forty-nine".