1105939 has 4 divisors (see below), whose sum is σ = 1108800. Its totient is φ = 1103080.

The previous prime is 1105919. The next prime is 1105943. The reversal of 1105939 is 9395011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1105939 - 2⁹ = 1105427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739 + ... + 1660.

It is an arithmetic number, because the mean of its divisors is an integer number (277200).

2^1105939 is an apocalyptic number.

1105939 is a deficient number, since it is larger than the sum of its proper divisors (2861).

1105939 is an equidigital number, since it uses as much as digits as its factorization.

1105939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 1105939 is about 1051.6363439897. The cubic root of 1105939 is about 103.4134573383.

The spelling of 1105939 in words is "one million, one hundred five thousand, nine hundred thirty-nine".