1105542689 has 2 divisors, whose sum is σ = 1105542690. Its totient is φ = 1105542688.

The previous prime is 1105542673. The next prime is 1105542701. The reversal of 1105542689 is 9862455011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1079451025 + 26091664 = 32855^2 + 5108^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105542689 - 2⁴ = 1105542673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1105542629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552771344 + 552771345.

It is an arithmetic number, because the mean of its divisors is an integer number (552771345).

Almost surely, 2^1105542689 is an apocalyptic number.

It is an amenable number.

1105542689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105542689 is an equidigital number, since it uses as much as digits as its factorization.

1105542689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 1105542689 is about 33249.7020888910. The cubic root of 1105542689 is about 1034.0110319487.

The spelling of 1105542689 in words is "one billion, one hundred five million, five hundred forty-two thousand, six hundred eighty-nine".