111252133 has 2 divisors, whose sum is σ = 111252134. Its totient is φ = 111252132.

The previous prime is 111252077. The next prime is 111252139. The reversal of 111252133 is 331252111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103673124 + 7579009 = 10182^2 + 2753^2 .

It is an emirp because it is prime and its reverse (331252111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111252133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111252133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111252139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55626066 + 55626067.

It is an arithmetic number, because the mean of its divisors is an integer number (55626067).

Almost surely, 2^111252133 is an apocalyptic number.

It is an amenable number.

111252133 is a deficient number, since it is larger than the sum of its proper divisors (1).

111252133 is an equidigital number, since it uses as much as digits as its factorization.

111252133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180, while the sum is 19.

The square root of 111252133 is about 10547.6126682771. The cubic root of 111252133 is about 480.9531595416.

The spelling of 111252133 in words is "one hundred eleven million, two hundred fifty-two thousand, one hundred thirty-three".