1111115645 has 16 divisors (see below), whose sum is σ = 1363633920. Its totient is φ = 868920000.

The previous prime is 1111115639. The next prime is 1111115647. The reversal of 1111115645 is 5465111111.

It is not a de Polignac number, because 1111115645 - 2⁶ = 1111115581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111115647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25970 + ... + 53820.

It is an arithmetic number, because the mean of its divisors is an integer number (85227120).

Almost surely, 2^1111115645 is an apocalyptic number.

It is an amenable number.

1111115645 is a deficient number, since it is larger than the sum of its proper divisors (252518275).

1111115645 is a wasteful number, since it uses less digits than its factorization.

1111115645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28036.

The product of its digits is 600, while the sum is 26.

The square root of 1111115645 is about 33333.4013415973. The cubic root of 1111115645 is about 1035.7455774341.

Adding to 1111115645 its reverse (5465111111), we get a palindrome (6576226756).

The spelling of 1111115645 in words is "one billion, one hundred eleven million, one hundred fifteen thousand, six hundred forty-five".