111042545 has 8 divisors (see below), whose sum is σ = 133759296. Its totient is φ = 88495216.

The previous prime is 111042497. The next prime is 111042557. The reversal of 111042545 is 545240111.

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 111042545 - 2²⁰ = 109993969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111042545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40907 + ... + 43536.

It is an arithmetic number, because the mean of its divisors is an integer number (16719912).

Almost surely, 2^111042545 is an apocalyptic number.

It is an amenable number.

111042545 is a deficient number, since it is larger than the sum of its proper divisors (22716751).

111042545 is an equidigital number, since it uses as much as digits as its factorization.

111042545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84711.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 111042545 is about 10537.6726557623. The cubic root of 111042545 is about 480.6509469765.

Adding to 111042545 its reverse (545240111), we get a palindrome (656282656).

The spelling of 111042545 in words is "one hundred eleven million, forty-two thousand, five hundred forty-five".