111906053 has 12 divisors (see below), whose sum is σ = 137834892. Its totient is φ = 90276480.

The previous prime is 111906037. The next prime is 111906059. The reversal of 111906053 is 350609111.

It can be written as a sum of positive squares in 2 ways, for example, as 85507009 + 26399044 = 9247^2 + 5138^2 .

It is not a de Polignac number, because 111906053 - 2⁴ = 111906037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111906059) 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 11 ways as a sum of consecutive naturals, for example, 66338 + ... + 68003.

It is an arithmetic number, because the mean of its divisors is an integer number (11486241).

Almost surely, 2^111906053 is an apocalyptic number.

It is an amenable number.

111906053 is a deficient number, since it is larger than the sum of its proper divisors (25928839).

111906053 is a wasteful number, since it uses less digits than its factorization.

111906053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134372 (or 134365 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 111906053 is about 10578.5657345408. The cubic root of 111906053 is about 481.8936379694.

The spelling of 111906053 in words is "one hundred eleven million, nine hundred six thousand, fifty-three".