111441469 has 2 divisors, whose sum is σ = 111441470. Its totient is φ = 111441468.

The previous prime is 111441437. The next prime is 111441487. The reversal of 111441469 is 964144111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99261369 + 12180100 = 9963^2 + 3490^2 .

It is a cyclic number.

It is not a de Polignac number, because 111441469 - 2⁵ = 111441437 is a prime.

It is a super-2 number, since 2×111441469² = 24838402025755922, which contains 22 as substring.

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 111441469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111441769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55720734 + 55720735.

It is an arithmetic number, because the mean of its divisors is an integer number (55720735).

Almost surely, 2^111441469 is an apocalyptic number.

It is an amenable number.

111441469 is a deficient number, since it is larger than the sum of its proper divisors (1).

111441469 is an equidigital number, since it uses as much as digits as its factorization.

111441469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 111441469 is about 10556.5841539771. The cubic root of 111441469 is about 481.2258438654.

The spelling of 111441469 in words is "one hundred eleven million, four hundred forty-one thousand, four hundred sixty-nine".