111230145 has 64 divisors (see below), whose sum is σ = 216652800. Its totient is φ = 53809920.

The previous prime is 111230143. The next prime is 111230159. The reversal of 111230145 is 541032111.

It is not a de Polignac number, because 111230145 - 2¹ = 111230143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111230143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106536 + ... + 107574.

It is an arithmetic number, because the mean of its divisors is an integer number (3385200).

Almost surely, 2^111230145 is an apocalyptic number.

111230145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111230145 is a deficient number, since it is larger than the sum of its proper divisors (105422655).

111230145 is a wasteful number, since it uses less digits than its factorization.

111230145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1121 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 111230145 is about 10546.5702955985. The cubic root of 111230145 is about 480.9214720747.

Adding to 111230145 its reverse (541032111), we get a palindrome (652262256).

The spelling of 111230145 in words is "one hundred eleven million, two hundred thirty thousand, one hundred forty-five".