111400145 has 8 divisors (see below), whose sum is σ = 133745256. Its totient is φ = 89076736.

The previous prime is 111400141. The next prime is 111400147. The reversal of 111400145 is 541004111.

It can be written as a sum of positive squares in 4 ways, for example, as 30382144 + 81018001 = 5512^2 + 9001^2 .

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 111400145 - 2² = 111400141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111400141) 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, 9719 + ... + 17811.

It is an arithmetic number, because the mean of its divisors is an integer number (16718157).

Almost surely, 2^111400145 is an apocalyptic number.

It is an amenable number.

111400145 is a deficient number, since it is larger than the sum of its proper divisors (22345111).

111400145 is an equidigital number, since it uses as much as digits as its factorization.

111400145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10851.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 111400145 is about 10554.6267105947. The cubic root of 111400145 is about 481.1663548335.

Adding to 111400145 its reverse (541004111), we get a palindrome (652404256).

The spelling of 111400145 in words is "one hundred eleven million, four hundred thousand, one hundred forty-five".