111433541 has 2 divisors, whose sum is σ = 111433542. Its totient is φ = 111433540.

The previous prime is 111433501. The next prime is 111433547. The reversal of 111433541 is 145334111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59737441 + 51696100 = 7729^2 + 7190^2 .

It is a cyclic number.

It is not a de Polignac number, because 111433541 - 2¹⁴ = 111417157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111433547) 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, 55716770 + 55716771.

It is an arithmetic number, because the mean of its divisors is an integer number (55716771).

Almost surely, 2^111433541 is an apocalyptic number.

It is an amenable number.

111433541 is a deficient number, since it is larger than the sum of its proper divisors (1).

111433541 is an equidigital number, since it uses as much as digits as its factorization.

111433541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 111433541 is about 10556.2086470475. The cubic root of 111433541 is about 481.2144320483.

Adding to 111433541 its reverse (145334111), we get a palindrome (256767652).

The spelling of 111433541 in words is "one hundred eleven million, four hundred thirty-three thousand, five hundred forty-one".