1324561 has 4 divisors (see below), whose sum is σ = 1513792. Its totient is φ = 1135332.

The previous prime is 1324513. The next prime is 1324567. The reversal of 1324561 is 1654231.

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 1324561 - 2¹⁵ = 1291793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324567) 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, 94605 + ... + 94618.

It is an arithmetic number, because the mean of its divisors is an integer number (378448).

2^1324561 is an apocalyptic number.

It is an amenable number.

1324561 is a deficient number, since it is larger than the sum of its proper divisors (189231).

1324561 is an equidigital number, since it uses as much as digits as its factorization.

1324561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189230.

The product of its digits is 720, while the sum is 22.

The square root of 1324561 is about 1150.8957381101. The cubic root of 1324561 is about 109.8223302659.

Adding to 1324561 its reverse (1654231), we get a palindrome (2978792).

The spelling of 1324561 in words is "one million, three hundred twenty-four thousand, five hundred sixty-one".