1442121 has 4 divisors (see below), whose sum is σ = 1922832. Its totient is φ = 961412.

The previous prime is 1442087. The next prime is 1442143. The reversal of 1442121 is 1212441.

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 a cyclic number.

It is not a de Polignac number, because 1442121 - 2⁶ = 1442057 is a prime.

It is a D-number.

It is a Curzon number.

1442121 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442121.

It is not an unprimeable number, because it can be changed into a prime (1442191) 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, 240351 + ... + 240356.

It is an arithmetic number, because the mean of its divisors is an integer number (480708).

2^1442121 is an apocalyptic number.

It is an amenable number.

1442121 is a deficient number, since it is larger than the sum of its proper divisors (480711).

1442121 is an equidigital number, since it uses as much as digits as its factorization.

1442121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480710.

The product of its digits is 64, while the sum is 15.

The square root of 1442121 is about 1200.8834248169. The cubic root of 1442121 is about 112.9797389732.

Adding to 1442121 its reverse (1212441), we get a palindrome (2654562).

The spelling of 1442121 in words is "one million, four hundred forty-two thousand, one hundred twenty-one".