1111554043 has 2 divisors, whose sum is σ = 1111554044. Its totient is φ = 1111554042.

The previous prime is 1111554029. The next prime is 1111554049. The reversal of 1111554043 is 3404551111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111554043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111553999 and 1111554017.

It is not a weakly prime, because it can be changed into another prime (1111554049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555777021 + 555777022.

It is an arithmetic number, because the mean of its divisors is an integer number (555777022).

Almost surely, 2^1111554043 is an apocalyptic number.

1111554043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111554043 is an equidigital number, since it uses as much as digits as its factorization.

1111554043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1111554043 is about 33339.9766496619. The cubic root of 1111554043 is about 1035.8817796035.

The spelling of 1111554043 in words is "one billion, one hundred eleven million, five hundred fifty-four thousand, forty-three".