1242041 has 4 divisors (see below), whose sum is σ = 1284900. Its totient is φ = 1199184.

The previous prime is 1242029. The next prime is 1242061. The reversal of 1242041 is 1402421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 846400 + 395641 = 920^2 + 629^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242041 - 2¹⁴ = 1225657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242001) 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, 21386 + ... + 21443.

It is an arithmetic number, because the mean of its divisors is an integer number (321225).

2^1242041 is an apocalyptic number.

It is an amenable number.

1242041 is a deficient number, since it is larger than the sum of its proper divisors (42859).

1242041 is an equidigital number, since it uses as much as digits as its factorization.

1242041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42858.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1242041 is about 1114.4689318236. The cubic root of 1242041 is about 107.4926189271.

Adding to 1242041 its reverse (1402421), we get a palindrome (2644462).

The spelling of 1242041 in words is "one million, two hundred forty-two thousand, forty-one".