1111444245 has 12 divisors (see below), whose sum is σ = 1926503436. Its totient is φ = 592770240.

The previous prime is 1111444219. The next prime is 1111444259. The reversal of 1111444245 is 5424441111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 165328164 + 946116081 = 12858^2 + 30759^2 .

It is not a de Polignac number, because 1111444245 - 2⁶ = 1111444181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12349336 + ... + 12349425.

It is an arithmetic number, because the mean of its divisors is an integer number (160541953).

Almost surely, 2^1111444245 is an apocalyptic number.

1111444245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1111444245 is a deficient number, since it is larger than the sum of its proper divisors (815059191).

1111444245 is a wasteful number, since it uses less digits than its factorization.

1111444245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24698772 (or 24698769 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 1111444245 is about 33338.3299671714. The cubic root of 1111444245 is about 1035.8476707528.

Adding to 1111444245 its reverse (5424441111), we get a palindrome (6535885356).

The spelling of 1111444245 in words is "one billion, one hundred eleven million, four hundred forty-four thousand, two hundred forty-five".