111541045 has 16 divisors (see below), whose sum is σ = 166877568. Its totient is φ = 69531840.

The previous prime is 111541043. The next prime is 111541139. The reversal of 111541045 is 540145111.

It is a happy number.

It is not a de Polignac number, because 111541045 - 2¹ = 111541043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111541043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144474 + ... + 145243.

It is an arithmetic number, because the mean of its divisors is an integer number (10429848).

Almost surely, 2^111541045 is an apocalyptic number.

It is an amenable number.

111541045 is a deficient number, since it is larger than the sum of its proper divisors (55336523).

111541045 is a wasteful number, since it uses less digits than its factorization.

111541045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289740.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 111541045 is about 10561.2993992217. The cubic root of 111541045 is about 481.3691306806.

Adding to 111541045 its reverse (540145111), we get a palindrome (651686156).

The spelling of 111541045 in words is "one hundred eleven million, five hundred forty-one thousand, forty-five".