111945273 has 8 divisors (see below), whose sum is σ = 162829536. Its totient is φ = 67845600.

The previous prime is 111945271. The next prime is 111945287. The reversal of 111945273 is 372549111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111945273 - 2¹ = 111945271 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 3392281 = 111945273 / (1 + 1 + 1 + 9 + 4 + 5 + 2 + 7 + 3).

It is not an unprimeable number, because it can be changed into a prime (111945271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1696108 + ... + 1696173.

It is an arithmetic number, because the mean of its divisors is an integer number (20353692).

Almost surely, 2^111945273 is an apocalyptic number.

It is an amenable number.

111945273 is a deficient number, since it is larger than the sum of its proper divisors (50884263).

111945273 is a wasteful number, since it uses less digits than its factorization.

111945273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392295.

The product of its digits is 7560, while the sum is 33.

The square root of 111945273 is about 10580.4193206130. The cubic root of 111945273 is about 481.9499282249.

The spelling of 111945273 in words is "one hundred eleven million, nine hundred forty-five thousand, two hundred seventy-three".