1105122005 has 8 divisors (see below), whose sum is σ = 1428157752. Its totient is φ = 816090048.

The previous prime is 1105121993. The next prime is 1105122041. The reversal of 1105122005 is 5002215011.

It can be written as a sum of positive squares in 4 ways, for example, as 40666129 + 1064455876 = 6377^2 + 32626^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1105122005 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 8500874 + ... + 8501003.

It is an arithmetic number, because the mean of its divisors is an integer number (178519719).

Almost surely, 2^1105122005 is an apocalyptic number.

It is an amenable number.

1105122005 is a deficient number, since it is larger than the sum of its proper divisors (323035747).

1105122005 is a wasteful number, since it uses less digits than its factorization.

1105122005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17001895.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1105122005 is about 33243.3753550989. The cubic root of 1105122005 is about 1033.8798604472.

Adding to 1105122005 its reverse (5002215011), we get a palindrome (6107337016).

The spelling of 1105122005 in words is "one billion, one hundred five million, one hundred twenty-two thousand, five".