14453223521 has 4 divisors (see below), whose sum is σ = 15767152944. Its totient is φ = 13139294100.

The previous prime is 14453223503. The next prime is 14453223539. The reversal of 14453223521 is 12532235441.

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 an interprime number because it is at equal distance from previous prime (14453223503) and next prime (14453223539).

It is a cyclic number.

It is not a de Polignac number, because 14453223521 - 2¹⁸ = 14452961377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14453223571) 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, 656964695 + ... + 656964716.

It is an arithmetic number, because the mean of its divisors is an integer number (3941788236).

Almost surely, 2^14453223521 is an apocalyptic number.

14453223521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14453223521 is a deficient number, since it is larger than the sum of its proper divisors (1313929423).

14453223521 is a wasteful number, since it uses less digits than its factorization.

14453223521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313929422.

The product of its digits is 28800, while the sum is 32.

Adding to 14453223521 its reverse (12532235441), we get a palindrome (26985458962).

The spelling of 14453223521 in words is "fourteen billion, four hundred fifty-three million, two hundred twenty-three thousand, five hundred twenty-one".