1105143 has 16 divisors (see below), whose sum is σ = 1626240. Its totient is φ = 663264.

The previous prime is 1105141. The next prime is 1105157. The reversal of 1105143 is 3415011.

It is not a de Polignac number, because 1105143 - 2¹ = 1105141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1348 + ... + 2006.

It is an arithmetic number, because the mean of its divisors is an integer number (101640).

2^1105143 is an apocalyptic number.

1105143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1105143 is a deficient number, since it is larger than the sum of its proper divisors (521097).

1105143 is a wasteful number, since it uses less digits than its factorization.

1105143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1105143 is about 1051.2578180447. The cubic root of 1105143 is about 103.3886407589.

It can be divided in two parts, 110 and 5143, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 1105143 in words is "one million, one hundred five thousand, one hundred forty-three".