1424521 has 8 divisors (see below), whose sum is σ = 1643840. Its totient is φ = 1209168.

The previous prime is 1424519. The next prime is 1424531. The reversal of 1424521 is 1254241.

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

It is a cyclic number.

It is not a de Polignac number, because 1424521 - 2¹ = 1424519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1424531) 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 7 ways as a sum of consecutive naturals, for example, 171 + ... + 1696.

It is an arithmetic number, because the mean of its divisors is an integer number (205480).

2^1424521 is an apocalyptic number.

It is an amenable number.

1424521 is a deficient number, since it is larger than the sum of its proper divisors (219319).

1424521 is a wasteful number, since it uses less digits than its factorization.

1424521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983.

The product of its digits is 320, while the sum is 19.

The square root of 1424521 is about 1193.5329907464. The cubic root of 1424521 is about 112.5182456004.

Adding to 1424521 its reverse (1254241), we get a palindrome (2678762).

The spelling of 1424521 in words is "one million, four hundred twenty-four thousand, five hundred twenty-one".