1024561 has 4 divisors (see below), whose sum is σ = 1048432. Its totient is φ = 1000692.

The previous prime is 1024559. The next prime is 1024577. The reversal of 1024561 is 1654201.

1024561 is nontrivially palindromic in base 9.

1024561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1024561 - 2¹ = 1024559 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1024511) 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, 11871 + ... + 11956.

It is an arithmetic number, because the mean of its divisors is an integer number (262108).

2^1024561 is an apocalyptic number.

It is an amenable number.

1024561 is a deficient number, since it is larger than the sum of its proper divisors (23871).

1024561 is an equidigital number, since it uses as much as digits as its factorization.

1024561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23870.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1024561 is about 1012.2060067002. The cubic root of 1024561 is about 100.8120872903.

Adding to 1024561 its reverse (1654201), we get a palindrome (2678762).

The spelling of 1024561 in words is "one million, twenty-four thousand, five hundred sixty-one".