1105055145 has 12 divisors (see below), whose sum is σ = 1915428996. Its totient is φ = 589362720.

The previous prime is 1105055129. The next prime is 1105055153. The reversal of 1105055145 is 5415505011.

1105055145 is a `hidden beast` number, since 1 + 10 + 505 + 5 + 145 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 267126336 + 837928809 = 16344^2 + 28947^2 .

It is not a de Polignac number, because 1105055145 - 2⁴ = 1105055129 is a prime.

It is a super-2 number, since 2×1105055145² = 2442293746981942050, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 12278346 + ... + 12278435.

It is an arithmetic number, because the mean of its divisors is an integer number (159619083).

Almost surely, 2^1105055145 is an apocalyptic number.

1105055145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1105055145 is a deficient number, since it is larger than the sum of its proper divisors (810373851).

1105055145 is a wasteful number, since it uses less digits than its factorization.

1105055145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24556792 (or 24556789 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 1105055145 is about 33242.3697259988. The cubic root of 1105055145 is about 1033.8590100792.

The spelling of 1105055145 in words is "one billion, one hundred five million, fifty-five thousand, one hundred forty-five".