14321452421 has 8 divisors (see below), whose sum is σ = 14463460440. Its totient is φ = 14179712512.

The previous prime is 14321452417. The next prime is 14321452441. The reversal of 14321452421 is 12425412341.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 983512321 + 13337940100 = 31361^2 + 115490^2 .

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 14321452421 - 2² = 14321452417 is a prime.

It is a super-2 number, since 2×14321452421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14321452441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41195 + ... + 174183.

It is an arithmetic number, because the mean of its divisors is an integer number (1807932555).

Almost surely, 2^14321452421 is an apocalyptic number.

It is an amenable number.

14321452421 is a deficient number, since it is larger than the sum of its proper divisors (142008019).

14321452421 is a wasteful number, since it uses less digits than its factorization.

14321452421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134055.

The product of its digits is 7680, while the sum is 29.

Adding to 14321452421 its reverse (12425412341), we get a palindrome (26746864762).

The spelling of 14321452421 in words is "fourteen billion, three hundred twenty-one million, four hundred fifty-two thousand, four hundred twenty-one".