1100939 has 4 divisors (see below), whose sum is σ = 1258224. Its totient is φ = 943656.

The previous prime is 1100933. The next prime is 1100947. The reversal of 1100939 is 9390011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9390011 = 383 ⋅24517.

It is not a de Polignac number, because 1100939 - 2⁸ = 1100683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78632 + ... + 78645.

It is an arithmetic number, because the mean of its divisors is an integer number (314556).

2^1100939 is an apocalyptic number.

1100939 is a deficient number, since it is larger than the sum of its proper divisors (157285).

1100939 is an equidigital number, since it uses as much as digits as its factorization.

1100939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157284.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 1100939 is about 1049.2564033638. The cubic root of 1100939 is about 103.2573762531.

The spelling of 1100939 in words is "one million, one hundred thousand, nine hundred thirty-nine".