1021041 has 24 divisors (see below), whose sum is σ = 1776320. Its totient is φ = 552096.

The previous prime is 1021019. The next prime is 1021043. The reversal of 1021041 is 1401201.

It is a happy number.

It is not a de Polignac number, because 1021041 - 2⁶ = 1020977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1021043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 771 + ... + 1623.

2^1021041 is an apocalyptic number.

It is an amenable number.

1021041 is a deficient number, since it is larger than the sum of its proper divisors (755279).

1021041 is a wasteful number, since it uses less digits than its factorization.

1021041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1021041 is about 1010.4657342038. The cubic root of 1021041 is about 100.6965042225.

Adding to 1021041 its reverse (1401201), we get a palindrome (2422242).

The spelling of 1021041 in words is "one million, twenty-one thousand, forty-one".