1110001 has 4 divisors (see below), whose sum is σ = 1117504. Its totient is φ = 1102500.

The previous prime is 1109987. The next prime is 1110007. The reversal of 1110001 is 1000111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1000111 = 7 ⋅142873.

It is a cyclic number.

It is not a de Polignac number, because 1110001 - 2⁹ = 1109489 is a prime.

It is an Ulam number.

It is a Duffinian number.

1110001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1110007) 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 3 ways as a sum of consecutive naturals, for example, 3525 + ... + 3826.

It is an arithmetic number, because the mean of its divisors is an integer number (279376).

2^1110001 is an apocalyptic number.

It is an amenable number.

1110001 is a deficient number, since it is larger than the sum of its proper divisors (7503).

1110001 is an equidigital number, since it uses as much as digits as its factorization.

1110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7502.

The product of its (nonzero) digits is 1, while the sum is 4.

The square root of 1110001 is about 1053.5658498642. The cubic root of 1110001 is about 103.5399116379.

Adding to 1110001 its reverse (1000111), we get a palindrome (2110112).

Multiplying 1110001 by its reverse (1000111), we get a palindrome (1110124210111).

It can be divided in two parts, 11 and 10001, that multiplied together give a palindrome (110011).

The spelling of 1110001 in words is "one million, one hundred ten thousand, one".