1424351521 has 16 divisors (see below), whose sum is σ = 1551312000. Its totient is φ = 1304068480.

The previous prime is 1424351483. The next prime is 1424351531. The reversal of 1424351521 is 1251534241.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1424351521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1424351521.

It is not an unprimeable number, because it can be changed into a prime (1424351531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35730 + ... + 64228.

It is an arithmetic number, because the mean of its divisors is an integer number (96957000).

Almost surely, 2^1424351521 is an apocalyptic number.

It is an amenable number.

1424351521 is a deficient number, since it is larger than the sum of its proper divisors (126960479).

1424351521 is a wasteful number, since it uses less digits than its factorization.

1424351521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28616.

The product of its digits is 4800, while the sum is 28.

The square root of 1424351521 is about 37740.5818847564. The cubic root of 1424351521 is about 1125.1378322647.

Adding to 1424351521 its reverse (1251534241), we get a palindrome (2675885762).

The spelling of 1424351521 in words is "one billion, four hundred twenty-four million, three hundred fifty-one thousand, five hundred twenty-one".