1424520521 has 4 divisors (see below), whose sum is σ = 1433050752. Its totient is φ = 1415990292.

The previous prime is 1424520473. The next prime is 1424520529. The reversal of 1424520521 is 1250254241.

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 1424520521 - 2¹⁰ = 1424519497 is a prime.

It is a super-2 number, since 2×1424520521² = 4058517429500222882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1424520529) 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, 4264865 + ... + 4265198.

It is an arithmetic number, because the mean of its divisors is an integer number (358262688).

Almost surely, 2^1424520521 is an apocalyptic number.

It is an amenable number.

1424520521 is a deficient number, since it is larger than the sum of its proper divisors (8530231).

1424520521 is an equidigital number, since it uses as much as digits as its factorization.

1424520521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8530230.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1424520521 is about 37742.8207875352. The cubic root of 1424520521 is about 1125.1823298883.

Adding to 1424520521 its reverse (1250254241), we get a palindrome (2674774762).

The spelling of 1424520521 in words is "one billion, four hundred twenty-four million, five hundred twenty thousand, five hundred twenty-one".