111100145 has 8 divisors (see below), whose sum is σ = 143575656. Its totient is φ = 82043136.

The previous prime is 111100141. The next prime is 111100147. The reversal of 111100145 is 541001111.

It can be written as a sum of positive squares in 4 ways, for example, as 1018081 + 110082064 = 1009^2 + 10492^2 .

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 111100145 - 2² = 111100141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100141) 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, 854552 + ... + 854681.

It is an arithmetic number, because the mean of its divisors is an integer number (17946957).

Almost surely, 2^111100145 is an apocalyptic number.

It is an amenable number.

111100145 is a deficient number, since it is larger than the sum of its proper divisors (32475511).

111100145 is a wasteful number, since it uses less digits than its factorization.

111100145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709251.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 111100145 is about 10540.4053527367. The cubic root of 111100145 is about 480.7340403798.

Adding to 111100145 its reverse (541001111), we get a palindrome (652101256).

The spelling of 111100145 in words is "one hundred eleven million, one hundred thousand, one hundred forty-five".