111553545 has 16 divisors (see below), whose sum is σ = 178661952. Its totient is φ = 59436480.

The previous prime is 111553529. The next prime is 111553553. The reversal of 111553545 is 545355111.

It is not a de Polignac number, because 111553545 - 2⁴ = 111553529 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15130 + ... + 21260.

It is an arithmetic number, because the mean of its divisors is an integer number (11166372).

Almost surely, 2^111553545 is an apocalyptic number.

111553545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111553545 is a deficient number, since it is larger than the sum of its proper divisors (67108407).

111553545 is a wasteful number, since it uses less digits than its factorization.

111553545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7352.

The product of its digits is 7500, while the sum is 30.

The square root of 111553545 is about 10561.8911658850. The cubic root of 111553545 is about 481.3871117726.

The spelling of 111553545 in words is "one hundred eleven million, five hundred fifty-three thousand, five hundred forty-five".