1105801081 has 24 divisors (see below), whose sum is σ = 1405784160. Its totient is φ = 860126400.

The previous prime is 1105801049. The next prime is 1105801097. The reversal of 1105801081 is 1801085011.

It is not a de Polignac number, because 1105801081 - 2⁵ = 1105801049 is a prime.

It is a super-2 number, since 2×1105801081² = 2445592061481537122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1105801181) 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 in 23 ways as a sum of consecutive naturals, for example, 370965 + ... + 373933.

It is an arithmetic number, because the mean of its divisors is an integer number (58574340).

Almost surely, 2^1105801081 is an apocalyptic number.

1105801081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1105801081 is a deficient number, since it is larger than the sum of its proper divisors (299983079).

1105801081 is a wasteful number, since it uses less digits than its factorization.

1105801081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685 (or 3678 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 25.

The square root of 1105801081 is about 33253.5874906753. The cubic root of 1105801081 is about 1034.0915834487.

Adding to 1105801081 its reverse (1801085011), we get a palindrome (2906886092).

The spelling of 1105801081 in words is "one billion, one hundred five million, eight hundred one thousand, eighty-one".