111535141 has 2 divisors, whose sum is σ = 111535142. Its totient is φ = 111535140.

The previous prime is 111535139. The next prime is 111535153. The reversal of 111535141 is 141535111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111386916 + 148225 = 10554^2 + 385^2 .

It is a cyclic number.

It is not a de Polignac number, because 111535141 - 2¹ = 111535139 is a prime.

Together with 111535139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111535121) 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 as a sum of consecutive naturals, namely, 55767570 + 55767571.

It is an arithmetic number, because the mean of its divisors is an integer number (55767571).

Almost surely, 2^111535141 is an apocalyptic number.

It is an amenable number.

111535141 is a deficient number, since it is larger than the sum of its proper divisors (1).

111535141 is an equidigital number, since it uses as much as digits as its factorization.

111535141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300, while the sum is 22.

The square root of 111535141 is about 10561.0198844619. The cubic root of 111535141 is about 481.3606373841.

The spelling of 111535141 in words is "one hundred eleven million, five hundred thirty-five thousand, one hundred forty-one".