1241021 has 4 divisors (see below), whose sum is σ = 1249500. Its totient is φ = 1232544.

The previous prime is 1241003. The next prime is 1241027. The reversal of 1241021 is 1201421.

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 148996 + 1092025 = 386^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241021 - 2⁶ = 1240957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240993 and 1241011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241027) 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, 4016 + ... + 4313.

It is an arithmetic number, because the mean of its divisors is an integer number (312375).

2^1241021 is an apocalyptic number.

It is an amenable number.

1241021 is a deficient number, since it is larger than the sum of its proper divisors (8479).

1241021 is an equidigital number, since it uses as much as digits as its factorization.

1241021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1241021 is about 1114.0112207693. The cubic root of 1241021 is about 107.4631855191.

Adding to 1241021 its reverse (1201421), we get a palindrome (2442442).

The spelling of 1241021 in words is "one million, two hundred forty-one thousand, twenty-one".