1111145564 has 12 divisors (see below), whose sum is σ = 1962345000. Its totient is φ = 550475568.

The previous prime is 1111145549. The next prime is 1111145569. The reversal of 1111145564 is 4655411111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111145569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273814 + ... + 1274685.

It is an arithmetic number, because the mean of its divisors is an integer number (163528750).

Almost surely, 2^1111145564 is an apocalyptic number.

It is an amenable number.

1111145564 is a deficient number, since it is larger than the sum of its proper divisors (851199436).

1111145564 is a wasteful number, since it uses less digits than its factorization.

1111145564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548612 (or 2548610 counting only the distinct ones).

The product of its digits is 2400, while the sum is 29.

The square root of 1111145564 is about 33333.8501226606. The cubic root of 1111145564 is about 1035.7548738543.

Adding to 1111145564 its reverse (4655411111), we get a palindrome (5766556675).

The spelling of 1111145564 in words is "one billion, one hundred eleven million, one hundred forty-five thousand, five hundred sixty-four".