1105505669 has 2 divisors, whose sum is σ = 1105505670. Its totient is φ = 1105505668.

The previous prime is 1105505581. The next prime is 1105505693. The reversal of 1105505669 is 9665055011.

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., 994456225 + 111049444 = 31535^2 + 10538^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105505669 - 2⁸ = 1105505413 is a prime.

It is a super-2 number, since 2×1105505669² = 2444285568382275122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105505069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552752834 + 552752835.

It is an arithmetic number, because the mean of its divisors is an integer number (552752835).

Almost surely, 2^1105505669 is an apocalyptic number.

It is an amenable number.

1105505669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105505669 is an equidigital number, since it uses as much as digits as its factorization.

1105505669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 1105505669 is about 33249.1453875133. The cubic root of 1105505669 is about 1033.9994902519. Note that the first 3 decimals are identical.

The spelling of 1105505669 in words is "one billion, one hundred five million, five hundred five thousand, six hundred sixty-nine".