1105041643 has 4 divisors (see below), whose sum is σ = 1111215240. Its totient is φ = 1098868048.

The previous prime is 1105041631. The next prime is 1105041659. The reversal of 1105041643 is 3461405011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3461405011 = 73 ⋅47416507.

It is a cyclic number.

It is not a de Polignac number, because 1105041643 - 2⁵ = 1105041611 is a prime.

It is a super-2 number, since 2×1105041643² = 2442234065528278898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105041943) 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 3 ways as a sum of consecutive naturals, for example, 3086530 + ... + 3086887.

It is an arithmetic number, because the mean of its divisors is an integer number (277803810).

Almost surely, 2^1105041643 is an apocalyptic number.

1105041643 is a deficient number, since it is larger than the sum of its proper divisors (6173597).

1105041643 is an equidigital number, since it uses as much as digits as its factorization.

1105041643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6173596.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1105041643 is about 33242.1666411803. The cubic root of 1105041643 is about 1033.8547993629.

Adding to 1105041643 its reverse (3461405011), we get a palindrome (4566446654).

The spelling of 1105041643 in words is "one billion, one hundred five million, forty-one thousand, six hundred forty-three".