1021241 has 8 divisors (see below), whose sum is σ = 1164744. Its totient is φ = 887040.

The previous prime is 1021217. The next prime is 1021243. The reversal of 1021241 is 1421201.

It can be written as a sum of positive squares in 4 ways, for example, as 78400 + 942841 = 280^2 + 971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1021243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2090 + ... + 2531.

It is an arithmetic number, because the mean of its divisors is an integer number (145593).

2^1021241 is an apocalyptic number.

It is an amenable number.

1021241 is a deficient number, since it is larger than the sum of its proper divisors (143503).

1021241 is a wasteful number, since it uses less digits than its factorization.

1021241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651.

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

The square root of 1021241 is about 1010.5646936243. The cubic root of 1021241 is about 100.7030785540.

Adding to 1021241 its reverse (1421201), we get a palindrome (2442442).

The spelling of 1021241 in words is "one million, twenty-one thousand, two hundred forty-one".