111130545 has 8 divisors (see below), whose sum is σ = 177808896. Its totient is φ = 59269616.

The previous prime is 111130543. The next prime is 111130553. The reversal of 111130545 is 545031111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111130545 - 2¹ = 111130543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111130543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3704337 + ... + 3704366.

It is an arithmetic number, because the mean of its divisors is an integer number (22226112).

Almost surely, 2^111130545 is an apocalyptic number.

111130545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111130545 is a deficient number, since it is larger than the sum of its proper divisors (66678351).

111130545 is an equidigital number, since it uses as much as digits as its factorization.

111130545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7408711.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 111130545 is about 10541.8473238802. The cubic root of 111130545 is about 480.7778836531. Note that the first 3 decimals are identical.

Adding to 111130545 its reverse (545031111), we get a palindrome (656161656).

The spelling of 111130545 in words is "one hundred eleven million, one hundred thirty thousand, five hundred forty-five".