1043121 has 4 divisors (see below), whose sum is σ = 1390832. Its totient is φ = 695412.

The previous prime is 1043117. The next prime is 1043131. The reversal of 1043121 is 1213401.

It is a happy number.

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.

It is not a de Polignac number, because 1043121 - 2² = 1043117 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

1043121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1043097 and 1043106.

It is not an unprimeable number, because it can be changed into a prime (1043111) 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, 173851 + ... + 173856.

It is an arithmetic number, because the mean of its divisors is an integer number (347708).

2^1043121 is an apocalyptic number.

It is an amenable number.

1043121 is a deficient number, since it is larger than the sum of its proper divisors (347711).

1043121 is an equidigital number, since it uses as much as digits as its factorization.

1043121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347710.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1043121 is about 1021.3329525674. The cubic root of 1043121 is about 101.4171875832.

Adding to 1043121 its reverse (1213401), we get a palindrome (2256522).

The spelling of 1043121 in words is "one million, forty-three thousand, one hundred twenty-one".